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- Linda Stein, Master Gardener | DCMGV
< Back Planning to Promote Success in Your 2022 Vegetable Garden March is a great time to start to plan for your summer vegetable garden. Whether you’re planning your first vegetable garden or you’re an experienced vegetable gardener, there are things you can be doing to enhance the probability of a successful growing season. Linda Stein, Master Gardener Experienced gardeners review last year’s successes and failures. Some problems that you encountered may be indicative of issues that you may wish to address as you prepare for the upcoming growing season. If your vegetable plants had lush leaf growth but limited vegetables, it may be because your soil has excess nitrogen and/or inadequate phosphorus. When we experience a thaw and you can dig in your garden, you may wish to have a soil test to determine how to amend the soil to promote effective growth. Go to the University of Minnesota’s website ( https://soiltest.cfans.umn.edu/testing-services/lawn-garden ) for details on how to submit a sample for testing. If you have been planting the same vegetables in the same locations you may have seen poorer harvests. As you prepare for the coming year consider rotating the location of specific plants to reduce damage from insect pests, limit the development of vegetable-specific diseases and manage soil fertility. Vegetables should be considered in the following groups: root vegetables, fruit-bearing vegetables, legumes, and leafy vegetables as you rotate the location of plants. So, for example, don’t plant fruit-bearing plants such as bell peppers where tomatoes were planted last year. Instead, plant legumes, root vegetables like carrots, or leafy vegetables such as lettuce. Many vegetables can be started from seeds, planted indoors and transplanted outdoors when the weather warms. March is the appropriate time to plant broccoli, brussels sprouts, cabbage, and cauliflower seeds indoors so they are ready for the Minnesota growing season. If you are planning your first vegetable garden, consider the following: Review your yard to find a location that receives at least 6 hours of sun. Decide which vegetables you would like to grow. Some of the easiest ones to grow include lettuce, cucumbers, green beans, summer squash, root vegetables (such as radishes and carrots), bell peppers, tomatoes, and peas. Review online listings or plant catalogs to determine the specific variety of the vegetables to plant. Make sure the plant will survive in Minnesota’s climate. Also consider the production habit of the plant. Some varieties continue producing over a prolonged period of time while others produce all their fruit over a short period of time. Develop a layout for planting. Consider traditional straight rows or square foot layouts. Consider how many plants of each vegetable to plant. Some vegetables like to be planted close together while others prefer space to allow good air flow around the plant. Plant tall plants along the northern end of our garden so they don’t shade shorter plants. Send a soil sample to the University of Minnesota to determine how you should amend the soil to promote plant health and vegetable production. (See link to the soil testing site above.) Consider March the start of your vegetable growing season and prepare for success in your 2022 garden. Photo Credit: Linda Stein (1), University of Minnesota Extension (2), Southern Foodways Alliance (3)
- Creeping Charlie (Glechoma hederacea} | DCMGV
< Back Creeping Charlie (Glechoma hederacea} Creeping Charlie (Glechoma hederacea} Is creeping charlie an unwelcome intruder in your garden? Read this article to find out more about why this plant is so hard to eliminate and, even, how you can appreciate and even live with Creeping Charlie in your garden. Unless you live in New Mexico, Arizona, Nevada, or Hawaii, you are probably familiar with creeping charlie. According to the Minnesota Department of Natural Resources , it was brought to the United States as far back as 1672 from Europe to be used both as a source of food and for medicinal reasons. Before the widespread use of hops for making beer, creeping charlie was commonly used for that purpose, thus you may hear it referred to as “ale ivy” among other names, including “ground ivy” or “catsfoot.” A quick internet search will provide an abundance of websites claiming creeping charlie provides relief from a number of ailments from ringing in the ears to constipation to colic to bronchitis, and the list goes on and on. The internet, however, is lacking scientific research to support those claims. One thing that is certain is that creeping charlie is in the mint family. Being in the mint family, some fans of creeping charlie enjoy making tea from its leaves, or using them in salads, or cooking them similar to how spinach is prepared. Rather than harvesting creeping charlie for its flavor profile, it is much more likely that you are not fond of the plant and spend an enormous amount of time and energy trying to eradicate it from your lawn or garden. There are a number of reasons creeping charlie is not welcome in a lawn or garden setting. Like the University of Minnesota Extension tells us, creeping charlie spreads or creeps across the top of the ground via surface roots or runners, called stolons, creating a dense carpet. The University of Michigan tells us that, similar to the runners above ground, creeping charlie has a rhizome root system that spreads horizontally below the ground. It can also spread by seed and even by small scraps of plant material dropped on the ground or left in the soil. It is a master at taking over areas where other plants are unsuccessful, like shady, moist areas, or where soil is compacted and only weeds tend to grow. Once established, it is very adaptable and has no problem creeping its way into sunny locations as well. It crowds out grasses and other desirable native plants. In order to get creeping charlie back under control, it is important to recognize the plant in your yard. According to the University of Michigan , this herbaceous perennial can be recognized by its square-shaped stems, scalloped opposite leaves, and bilaterally symmetric purple flowers that bloom from April to June. You may notice the dense carpet of the leaves that the University of Illinois describes as somewhat kidney-shaped with rounded, toothed margins. Before discussing how to get rid of creeping charlie, it is important to look at cultural control methods for how to prevent it from taking over in the first place; or at least how to create an environment that is not as conducive for its growth. One thing a gardener can do to prevent a creeping charlie takeover is to plant a shade tolerant grass in shady areas instead of a sun-loving Kentucky bluegrass, for example. The University of Wisconsin alternatively recommends foregoing grass in difficult shaded areas and instead planting other shade-loving plants like hostas, pachysandra, or vinca. Once alternative plants are established, newly introduced creeping charlie would have a more difficult time competing. Another cultural method to prevent or hinder the spread of creeping Charlie, would be to alter the growing conditions. Improving drainage or watering less makes the area less desirable for creeping charlie. The University of Minnesota also suggests reducing the amount of shade by trimming shrubs or pruning trees. Mechanical methods of getting rid of creeping charlie include hand-pulling the plants. The University of Michigan reminds us that it will take diligence and patience to remove all of the plants. The most important thing to remember about this method is to get rid of every piece of the plant. Since any little piece left behind can sprout a new plant, it may take multiple seasons to clear out an area. With that in mind, mowing an area of creeping charlie can cause it to spread if the plant is mowed and the clippings are left behind. Remember to bag clippings when mowing an area that is infested with the plant. The Minnesota DNR also recommends setting the mower at a taller setting and fertilizing less to help choke out the creeping charlie. Physical barriers, like edging, are not very effective in stopping the spread of creeping charlie. The stolons above ground and rhizomes below ground are very adept at finding their way over, under, or around barriers. However, if there is an area where you have decided to let creeping charlie live in your yard, a physical barrier will at least slow the spread as long as you are diligent about keeping it contained and removing any plants that make it past the barrier. If none of the previous methods are reasonable or successful in your situation, it is time to consider herbicides, though, as the DNR states, herbicide control is challenging because creeping charlie can reestablish quickly after post-emergence treatment. The University of Minnesota makes the point that the timing of herbicide application makes a difference in its effectiveness. They recommend fall as the best time to apply it when the plant is taking up nutrients from the soil in order to survive winter. Purdue University adds that in the fall a very careful spot application is less likely to affect surrounding garden plants than in the spring when they are more actively growing. The next choice is spring when creeping charlie is actively growing if there are no surrounding plants or if they are shielded from the herbicide. The most effective herbicide against creeping charlie will contain the ingredient triclopyr. Also mentioned are 2,4-D and Dicamba. These are all selective broadleaf herbicides. This means that if you are treating creeping charlie in your lawn rather than in a garden, you do not need to worry about killing your lawn grasses as it will only kill the creeping charlie. Two - three applications per year should be sufficient to keep it under control if instructions are carefully followed, though the University of Wisconsin warns against applying Dicamba more than twice per year. In the past, gardeners touted the use of Borax to treat creeping charlie. Research at the University of Wisconsin and Iowa State University have proven that it should not be used as broadleaf weed control against creeping charlie or any other weeds. It was found that even in small amounts, it is bad for the soil, providing an unfavorable growing environment for desirable plants. If you have a large area where creeping charlie has completely taken over, you may want to consider one of these solutions. One method recommended by staff at the University of Michigan is called sheet composting, or lasagna composting. Layers of organic material are placed upon newspaper or cardboard to smother the creeping charlie and give you a fresh start. In a sunny location, the University of Minnesota recommends another natural method called solarization, where a sheet of plastic over the infested area for several months raises the temperature so that the creeping charlie can no longer survive. If you prefer a chemical alternative, the University of Minnesota suggests that if your lawn is at least 50% creeping charlie, you may want to apply a non-selective herbicide containing glyphosate, like Round-Up. It will kill all the vegetation. As with all chemicals, be sure to carefully follow the instructions to safely apply it and to see when it is safe for people and pets to enter the area and when you can re-seed the area. Everyone’s situation is different, so it is important to consider all the different options for ridding your lawn and garden of creeping charlie. Everyone’s tolerance level is different, so one last thing to consider, but definitely not the least, is whether or not you can live with creeping charlie. Keeping our neighbors happy and controlling invasive weeds from spreading across the property line is important, but perhaps you have an area in your yard where you can allow creeping charlie to co-exist with you. It does provide a small benefit to pollinators, and the carpet of delicate purple flowers in the spring is a beautiful sight. Photo credits: Lisa Olson (1, 3, 4), University of Minnesota (2, 5)
- Julie Harris, Dakota County Master Gardener With School Garden Leaders: Deb Oldenburg, Kate Minor, Mary Barnidge and Patricia McCabe | DCMGV
< Back Master Gardeners Are in School – Gardens Julie Harris, Dakota County Master Gardener With School Garden Leaders: Deb Oldenburg, Kate Minor, Mary Barnidge and Patricia McCabe A primary purpose of the volunteer Master Gardener program is to educate the community about environmentally sound gardening practices. There is no better audience hear the lessons of why and how to grow flowers and vegetables than children. The Dakota County Master Gardeners put this concept into practice by participating in four “school gardens.” Read this article explaining where, why and how Master Gardeners are in school – gardens. Look for them in your community! A primary purpose of the volunteer Master Gardener program is to educate the community about environmentally sound gardening practices. There is no better audience to teach the lessons of why and how to grow flowers and vegetables than children. The Dakota County Master Gardeners put this concept into practice by participating in four “school gardens.” In partnership with the schools, Master Gardeners teach children at Community of Saints School, Gideon Pond Elementary School, Pine Bend School Garden and Garlough Environmental Magnet School. While each school garden program and process are somewhat different, in general, the mission of these gardens is to provide school-aged children with engaging education about growing produce. Here are their stories. Community of Saints School Garden, West St. Paul This small school garden is a powerhouse producer for a school in an under-served community. Master Gardeners partner with the school kids in the spring to plant over 25 types of crops including vegetables, fruit, herbs and flowers. Summer program kids from pre-K through 5th grade are provided fun garden education and activities on a variety of [topics including water, weather, pollinators and mini beasts. They learn how to be gardeners and how much work it takes to water, weed and harvest the garden. By the end of the season, we have typically harvested 300+ lbs. of produce which is consumed by students, families and staff. We are currently looking for community partners to help with future projects and maintenance to continue our mission. Garlough Environmental Magnet School Garden, West St. Paul This garden is part of the school's magnet curriculum. It supports projects for different grades. For example, the third grade makes salsa with some of the produce; kinderdergartner/first graders plant and harvest potatoes to make fries. They also grow a Native American “three sisters” garden. Master Gardeners helped to plan and supervise the planting of the garden at the school’s Environmental Explorers’ Fair in May. Students and their families helped to plant the garden along with Master Gardener volunteers. Teachers, staff, parents and students are thrilled with the garden project! Pine Bend School Garden, Inver Grove Heights The Pine Bend School Garden was established in 2018 with a Garden-in-a-Box grant from the Minnesota State Horticultural Society along with a donation from the school's PTSA. The mission of the garden is to create a beautiful, thriving school garden that provides students, teachers, and parents with the opportunity to connect with the natural world, grow and eat fresh produce, and expose them to a hands-on environmental education. There is an after-school garden club available to students in grades 3-5 two days a week in the spring and fall. They receive a short lesson about plants and best gardening practices created and delivered by Master Gardeners. Then they work in the garden planting, maintaining, and harvesting. Parents and students sign up to take care of the garden throughout the summer. The garden is visible and open to all students and the public. The pollinator garden is next to the main entrance and many parents (and neighbors) have commented on how beautiful it is. It is also teeming with bees, butterflies, and birds. The vegetable/fruit garden is in the school courtyard next to the playground. All students walk by the garden to witness the growth and changes. Sometimes signs are created and installed to educate students. Garden club members help lead an all-school assembly in the spring on Earth Day. Produce has been shared with the school in the cafeteria. The garden started small and has grown over the years with the help of in-kinds donations and grants from several community businesses and nonprofits. Gideon Pond Elementary School, Burnsville The Dakota County Master Gardeners have had a long partnership with the Gideon Pond Elementary School in Burnsville. They helped build a garden on school property to provide hands-on education for PreK through 5th grade students about gardening and where their food comes from. Our Master Gardener team teaches the students how to start seeds in the spring, and then how to transfer those seedlings to the garden in early summer. Our garden includes several different types of vegetables, fruits, herbs and flowers. Summer school sessions include a 6-week curriculum (based on the U of MN Children’s Garden in Residence Program) with in-garden instruction on what plants need to thrive, how to deal with the Garden Villains (picking bugs, pulling weeds and deterring rodents/mammals), importance of pollinators and other “garden helper bugs”, purpose of fences, mulch and trellises, sensory evaluation of herbs, plant identification, and garden maintenance and harvesting. This summer we added a class with Early Childhood Family Education (ECFE). Participants include children birth through 5-year olds and their parents. The school is a joy to work with and the students are so excited to learn and participate in the entire gardening experience. It is not uncommon to be greeted by the students with a “Hi Master! Hi Master!” It is a rewarding experience for all involved. Quote from the school liaisons: “Thank you so much! This has been such a fantastic and memorable experience for our (students). We appreciate all that you did to make it fun and educational- not always an easy task.” And thank you to the schools, children and parents for making these gardens a “fantastic and memorable experience” for our Master Gardeners. Photo credits: Deb Oldenburg (1,2), Kate Minor (3,4), Patricia McCabe (5,6), Mary Barnidge (7,8)
- by Mary Gadek, Dakota County Master Gardener | DCMGV
< Back Fall Scavenger Hunt by Mary Gadek, Dakota County Master Gardener Come join the adventure of a fall scavenger hunt as a Junior Fall Garden Detective! Teach the child in your life how to detect the arrival of autumn in Minnesota. Read along here for a guide to gathering clues and using some scientific observations in an outdoor search to confirm fall’s arrival. It is time for all Junior Fall Garden Detectives to investigate how we know that fall has returned to our yards and gardens. Let’s find the clues, scientific observations, and evidence your child can collect about fall. Then, participate in a scavenger hunt revealing autumn’s cool air, shorter daylight, and changes in gardens, creatures, and our lives. CLUES As the seasons change from summer to fall, the air temperatures drop and the days get shorter. Look for these clues to determine when the seasons change: ● Air temperatures . The Minnesota average temperatures on September 1 are 77 degrees daytime, 59 degrees nighttime. By November 1, the temperatures have decreased to an average of 50 degrees daytime, 35 degrees nighttime. ● Daylight . From the start of school in early September through the end of September, you may have noticed less daylight each day as you hop on your school bus in the morning until you are playing at the park at the end of the day. Daylight on average decreases by one hour and 15 minutes from August 1 through October 15. The equinox is when the days and nights are said to be equal in length for the entire globe. For the Northern Hemisphere, (the northern half of the world), where Minnesota is located, the fall equinox will be on September 22, 2024, at approximately 7:43 am, kicking off the start of the season. EVIDENCE Some scientific observations, or evidence, of the seasonal changes may include: ● Trees . Trees and bushes are dropping an array of leaves with bright reds, yellows, oranges, and browns. Burning bush (or Euonymus alatus), along with oaks and maple trees create intense red leaves. River birch and yellow poplar trees have showy yellow displays in the fall. ● Plants. Flowers and plants around the yard have lost their blooms and dropped their leaves as their energy returns to their roots below the ground. The final fruits of many plants are ready for harvest, like apples and pumpkins. ● Creatures. The arrival of fall invites the creatures in your yard, or local park, to either migrate to the warmer south or prepare to hunker down for the Minnesota winters by making nests or dens. Birds, like Canadian geese, wood ducks, and the loon, form flocks and fly south. Look up to the autumn sky as the migrating birds fly in a triangular formation to head to warmer locations. Butterflies, like the monarch, partake in a long journey to winter in warm Mexico. You may notice that the butterflies are no longer to be found in the garden. Other animals, insects, and birds remain in Minnesota during the winter by hibernating, or sleeping, in covered areas or under the brush of the colorful fallen leaves and nearby evergreens. Look closely, squirrels are collecting seeds and acorns to save up for their winter meals. SOLVE Now, it’s time for a fun expedition outside in your yard, neighborhood, or local park to search for these clues and evidence of fall and its impact on our daily lives. See the attached printable Junior Fall Detective Scavenger Hunt here for an activity for your child. Read: The Very Hungry Catepillar’s First Fall by Eric Carle, to help the younger child understand the concepts of fall. Buy: https://www.amazon.com/Hungry-Caterpillars-First-World-Carle/dp/0593384768/ref=sr_1_9?dib=eyJ2IjoiMSJ9.A2F_T8wwaRnCdivgPFsO5IGQdF9pZTxxKDdCxuOob5ZqKJsb9GrsLZpjRJcRKDZYUNGuHZCHYHX_e8MHQvAJkzW395e8Fx-vGN33AGJElFC0Z90rjHwbxCeAW2LiN9yJ7_WKZFEFEdHzs73L8bOLnimVG-Kyp0ToP86gekzJ3TbV6lm2nXsLTSc9RXsDg8869p7rgyugXEC8AbMsmNIqPx8NLF3aH0GyyaNHQu0G2CV6pzrwh-kBl_hlGAwVcSoWjQ5joGUsi5uXMPuh0mioWjIbNHYFa-O5W8JldhCx2Lo.Yk6T3qxBgI-pxXL1PXwWEEU0LP9Vk1wi_gt3CVSyKPY&dib_tag=se&keywords=Fall+Children%27s+Books&qid=1721076061&sr=8-9 Or go to the Dakota County library and check out the book: ISBN: 9780593384763 Photo Credit: Mary Gadek (1,2,3)
- Julie Harris, Dakota County Master Gardener | DCMGV
< Back Hello Spring! Julie Harris, Dakota County Master Gardener April is the month when we can finally spend time out of doors, breathing fresh, cool air and watching plants and trees “green up.” April is also the month to get your garden in gear for the season. But do so slowly. Starting too early can compact the soil and disturb pollinators that may still be asleep in the garden. This article will review steps you should be taking now in your flower or vegetable gardens to set the stage for a successful growing season. April is the month when we can finally spend time out of doors, breathing fresh, cool air and watching plants and trees “green up.” April is also the month to get your garden in gear for the season. But do so slowly. Starting too early can compact the soil and disturb pollinators that may still be asleep in the garden. This article will review steps you should be taking now in your flower or vegetable gardens to set the stage for a successful growing season. Garden Clean Up The Minnesota garden in early spring is not impressive looking. Bunches of dead plant stalks, soggy leaves, and lots of brown. The temptation is to start cutting down the brown to make room for green growth as soon as the snow melts. But don’t ! During the winter, our dead, brown yards are actually playing host to dozens of pollinating insects. As longer days arrive, they emerge from their winter homes – underneath leaves, in hollow plant stems, and underground – and begin their critically important work for our food chain. When can you start cleaning up the mess? Most insects will not emerge until temperatures are consistently about 50 degrees. In Minnesota, this could be mid to late April or even early May. Of course, you may need to move some winter debris, for example, if leaves are smothering your grass. But be selective and let old plants and leaves rest for a while longer. Lawn Care Late spring and early fall are good times to fix bare patches in lawns. Cooler temperatures are ideal for germinating new lawn seed. Temperatures between 55-65 degrees are ideal for new lawn growth. Pre-emergent applications to control crabgrass or weed seed germination should be done mid-April to mid-May. Do not apply a pre-emergent to newly seeded lawns or gardens (pre-emergent prevents seeds from germinating). Hold off on fertilizing lawns until May when lawn growth begins to take off. Perennials Cut back any perennials that you left standing last fall. It is also the time to divide your established perennials as they begin to emerge from the ground. For many perennials, division helps the plant perform better because there is more space for roots to grow and absorb nutrients and water. (Hint: if you see a hole in the center of your hosta, it wants to be divided!) Plant division is also a cost-free way to expand your garden. Check out https://extension.umn.edu/planting-and-growing-guides/dividing-perennials for more information about how to divide perennials. Soil Testing Spring is the time to prepare your garden soil. Good soil is the foundation of a healthy lawn and garden. Spring is also a good time get your soil tested. Soil testing is available through the University of Minnesota Soil Testing Laboratory . The basic soil test will provide information on the soil texture, organic matter, phosphorus, potassium, pH and lime levels in your soil. With that information, you will know the specific composition of fertilizer that will benefit your garden. It will also provide you with information that will help you determine the types of plants that will do best in your garden. Soil testing is easy! You will fill out a form that asks what the area will be used for and the results will then provide recommendations specific to that use. A soil sample of two to three cups of soil can be mailed or brought to the Soil Testing Laboratory at the University of Minnesota. The sample should be collected by walking in a zig zag pattern through the space and placed in a clean tub or plastic bag. Separate samples should be submitted for separate areas of your yard. Go to this website for specific instructions about how to submit a soil sample and get the latest fees. Preparing the Soil Applying compost to your soil may improve it and help plant growth. Incorporating compost into light, sandy soil helps it hold both moisture and nutrients while adding it to heavy soil improves drainage. If you haven’t applied compost in the fall - and depending on the results of your soil test - adding 2-3 inches of compost and working it into your soil about two weeks before planting may be helpful. Spring is the time to till your soil if that is your practice. Tilling the soil helps to warm it and removes existing weeds. But tilling also stimulates germination of new weeds which should be promptly removed as they emerge. Note that tilling may not be necessary. Take a look at this article for alternatives to tilling. If you do till, it should not be done when the soil is too wet because it may become compacted when it dries. If your soil sticks to a shovel and holds a ball, it is too wet to till. If you are going to add compost or other amendments to the soil, do so before tilling. Planting If you started seeds indoors this winter, you can start bringing seedlings outside during the warmer days of mid to late April (depending on the plant or vegetable) and begin acclimating them to their environment. Remember to watch the weather when hardening off seedlings as extreme wind, sun exposure and cold temperatures can set them back. Spring blooming annuals like pansies and violas can tolerate cooler temperatures adding a pop of color to your outdoor space while we wait for warmer temperatures to arrive. Some cool-season vegetables can be planted outside in mid to late April. The soil must be thawed and easily workable before you plant. Check the soil temperature to determine when cool weather vegetables can be planted. Here are some examples of appropriate soil temperatures for some vegetables: 40 degrees – arugula, kale, lettuce, bok choi, peas, spinach, radishes, radicchio 60 degrees – beans, beets, broccoli, brussels sprouts, carrots 70 degrees – tomatoes, eggplants, peppers, cucumbers, squash, corn melons Cleaning Garden Tools Disease from an infected plant may be spread to a healthy one by using dirty garden tools. Proper cleaning of your tools can reduce the spread of disease. If you haven’t cleaned your tools in the fall, do so in the spring. You should also clean your tools when you have used them on plants that may be infected with a disease. Cleaners such as Lysol All-Purpose Cleaner, a bleach solution and alcohol may be effective cleaners. However, refer to the following article regarding the proper methods to use with these cleaners. The last time you were able to work in the garden, you were raking leaves, cutting down plants, putting garden ornaments away and covering patio furniture. Take pleasure in doing the reverse and watching your garden come alive again. References: Mississippi Watershed Management Organization; www.mwmo.org University of Minnesota Yard and Garden , Spring Yard and Garden Preparation https://extension.umn.edu/planting-and-growing-guides/clean-and-disinfect-gardening-tools Photo Credit: Mississippi Watershed Management Organization (1), University of Minnesota Extension (2,4,5), Minnesota State Horticultural Society (3)
- Janelle Rietz-Kamenar, Master Gardener | DCMGV
< Back Snow Mold! It’s Not About Putting Snow in a Mold As the snow begins to melt, you may start to see a grayish, and sometimes pinkish, circular straw-like, matted patch in your yard, especially near the street where snow was piled up for what may have seemed like decades to some but was only a few months. The spot can also have a “webby” fungus appearance. If you have this phenomenon in your yard, then click on this link to learn about snow mold and what you can do to prevent it from happening again next Spring. Janelle Rietz-Kamenar, Master Gardener Snow Mold is a fungus that develops and thrives when early, deep snow covers the ground prior to the ground being frozen. Snow mold can continue to grow once the snow has melted in the Spring as long as the conditions remain wet and cold. There are 2 types of snow mold found in Minnesota: Gray snow mold produces sclerotia which look like dark, hard round bodies on the grass blade. Pink snow mold produces pink-colored spores and fuzzy mycelium. Areas of your lawn that are affected with snow mold will generally take longer to green up in the Spring but usually come back to normal and therefore, is not usually too serious. In a bad weather year, it can, however, kill the grass. If you want to “spring” into Action this Spring: You can choose to break up and spread the larger snow piles around in the affected areas. This will help the snow melt faster and dry out quicker. You can gently rake the area to create a faster drying process and prevent further mold growth. Preparation to avoid snow mold altogether must be done in the Fall with these easy steps: If your yard is prone to snow mold, skip a Fall nitrogen fertilizer which the fungus thrives on. Continue to mow your lawn until the grass stops growing. Cut grass to 2 inches (but not shorter) to prevent the grass from matting and allowing mold to grow. Rake up leaves If you have certain areas in your yard where snow mold is a problem, consider a snow fence to reduce large piles of snow. While snow mold can be a little unsightly in the Spring, a few actions can help alleviate the problem quickly! Source: University of Minnesota Extension: “Snow Mold Prevention Begins in Autumn”, October 20, 2023 Photo Credit: University of MN Extension (1,2)
- Janelle Rietz-Kamenar, Master Gardener | DCMGV
< Back Discover Delicata Squash? Delicata Squash is favored for its delicate, edible skin. No peeling necessary! This squash is booming in popularity. Here are some growing tips. Janelle Rietz-Kamenar, Master Gardener So what is delicata squash anyway? It is an oblong shaped squash with green or orange lines running from end to end. It is actually classified as a winter squash but has a thin skin (similar to summer squash) that can be eaten. The delicate skin is the basis for its name. Even though it is technically a winter squash, it does not store as well as other winter squash though because of its skin. It is a cultivar of the species called Cucurbita pepo . Other common names for this squash are peanut squash, Bohemian squash, or sweet potato squash. I have to admit that I had never even heard of Delicata Squash until last year when I learned that 228 Master Gardeners from 49 counties across Minnesota conducted seed trials on this plant. Six different varieties were tested. Master gardeners were looking for the best germination rates, how well the seeds grew, which ones tasted best including texture, and insect and disease susceptibility, as well as a few other factors. Click here to learn more about how this particular squash type performed. This squash appears to be growing in popularity since Cornell University’s Plant Breeding department developed a non-hybrid open pollinated variety around twenty years ago which was more mildew disease resistant. Master Gardeners across the state found it was easy to grow. What some of us didn’t know was what to do with it once harvested. Delicata squash is primarily roasted but can also be steamed, sauteed, and microwaved. Some recipes call for the squash to be stuffed with meat or other vegetables. I knew it was becoming popular when Country Living had an article on “31 Ways to Use Delicata Squash for Dinner Tonight” (October 22, 2021) among other websites/magazines. Delicata squash is a good source of dietary fiber and potassium but not as rich in beta-carotene as other winter squashes. However, if you want to try something different, consider growing this product in your garden this year. Sow seed in the garden in late May to early June, or start seeds indoors in late April. Make sure to pick squash before a hard freeze. Check out our Master Gardener videos on growing Delicata Squash: “How, When’s, Where’s,” “Delicata Squash Borer Protection,” “Delicata Squash Borer,” and “ Delicata Squash Harvest.” Sources: https://extension.umn.edu/news/master-gardeners-are-busy-during-winter https://www.countryliving.com/food-drinks/g4686/delicata-squash/ https://extension.umn.edu/vegetables/pumpkins-and-winter-squash#choosing-pumpkin-and-winter-squash-varieties-235460 https://en.wikipedia.org/wiki/Delicata_squash Photo Credit: Gurney's Seed and Nursery,creative Commons Licenses (1) & Centerstagewellness.com , Flickr Pro (2)
- Joanna Kapke, Master Gardener | DCMGV
< Back Identifying and Attracting Beneficial Insects Joanna Kapke, Master Gardener Now that the plants in our gardens are starting to bloom, we are also seeing insects on those plants. Some of those insects are certainly pests but others are actually beneficial. We know how pollinators are beneficial insects - many of the foods we enjoy rely on pollinators for fruit and seed development. But how do we identify other insects that are beneficial to our gardens and landscapes in other ways? Read this article to find out! Now that the plants in our gardens are starting to bloom, we are also seeing insects on those plants. Some of those insects are certainly pests but others are actually beneficial. We know how pollinators are beneficial insects - many of the foods we enjoy rely on pollinators for fruit and seed development. But how do we identify other insects that are beneficial to our gardens and landscapes in other ways. Beneficial insects (at various stages in their life cycle and using multiple methods) can help manage the populations of insect pests like aphids. Some examples of beneficial insects include ground beetles, lady beetles, lacewings, syrphid flies and a variety of solitary and parasitoid wasps. Many of the recommendations for attracting pollinators to your garden—planting a variety of flowering plants, including native plants in your landscape or providing a water source/feature—are also true for encouraging beneficial insect visits. But beneficial insects need more than the aphids and larvae you want them to eliminate. They need pollen and nectar for energy and places to shelter and overwinter to encourage them to stay in your space. Here are several gardening strategies to attract and retain beneficial insects in your garden: Have an array of perennial and annual plants flowering consistently throughout the growing season. Leave some aphids on plants. Allow some plant litter to stay on the ground over winter. Limit or eliminate the use of pesticides. Certain plants also attract beneficial insects. In many cases, smaller flowers will attract smaller insects like syrphid flies. Some flowers commonly listed as attracting beneficial insects that do well in Minnesota gardens are: yarrow, dill, alyssum, cosmos, gem marigolds, clover, cinquefoils, fennel, lemon balm and milkweeds. For more ideas, check the internet for lists of plants that attract beneficial insects. Before adding any new plants to your yard in order to attract beneficial insects, check your local DNR list of invasive species to ensure there isn’t crossover. For example, common tansy and Queen Anne’s Lace are often listed as plants that will attract beneficial insects. But in Minnesota, both are considered noxious weeds and it is illegal to import, sell or transport them within the state. You can purchase many species of beneficial insects online. Before doing so, take a few things into consideration: Can you follow the release instructions exactly? Will you need to repeat the process? Insects often…fly away. Is the pest you are hoping to eliminate a serious problem? It can often be more sustainable to make your landscape more welcoming to beneficial insects than trying to repeatedly introduce species that have been ordered from other sources. For more information on specific beneficial insects, their life cycle and what they can do for your garden visit this U of MN Extension site. Take some time to learn more about the insects that you want to attract to your garden. Your plants will appreciate it! Photo Credit: Joanna Kapke (1,2,3)
- Alyce Neperud, Dakota County Master Gardener Intern | DCMGV
< Back Native Grasses for the Home Landscape Alyce Neperud, Dakota County Master Gardener Intern Native grasses, sedges and flowers can be stunning at any scale; from vast prairie to small garden. In addition to the visual appeal, they provide essential habitat for many native insects and birds. The vegetation of the mesic prairie ecosystems that once covered much of southern and western Minnesota included a profusion of flowering plants and grasses. These resilient plants adapted to survive cold winters, hot summers, flood and drought and are still excellent choices for most of Minnesota. This article shares the benefits of and considerations for making native grasses a part of your landscape. Benefits of Native Grasses Long lived perennials Drought tolerant and soil stabilizers; due to deep root systems Enhanced soil; fibrous roots slough off and break down into organic matter Food source for wildlife; butterflies, skippers, birds Shelter for native insects, including butterflies, moths and bees Structural; support other plants Competitive with weeds Characteristics of Native Grasses Primarily warm season grasses; grow in late spring and flower in the hot summer Either clump or running growth habit Wind pollinated; flowers are small, do not need to attract pollinators Arrangement and branching patterns of florets in the seedhead (aka grass inflorescence) determine how grasses are identified, named, and classified Clump (Blue Grama) Inflorescence (Side Oats Grama) Design considerations for your site: What are your goals? Are there any restrictions at your site? What are your water and soil conditions? Some grasses are more suited to sandy, dry, high ground while some tolerate more wet conditions. Do you prefer a formal or informal design? A formal garden generally takes more space so the plants can show their full shape and allow for layering of heights from front to back. Formal (Noerenberg Memorial Gardens) Informal (Mendota Heights Victoria Road) Do you prefer a mix of textures and shapes or a uniform look? The clump form grows outward slowly so is less aggressive and good for mixes while the running growth habit is beneficial if you want a single grass to fill in a space for a functional purpose, for example to stabilize a slope or create a mow-able lawn. Short to medium height grasses are suited to locations with limited space where visibility and minimal spreading is desirable. Preferred grasses are generally shorter, of clump form, include visual interest from color and/or interesting seed heads, and mix well with low growing prairie flowers. Prairie Dropseed is widely adapted to soils ranging from dry, sandy and rock outcrops to low, wet mesic habits. It is an elegant clump form, at 2-4’ height. The nativar “tara’ is shorter in form at 24-30”. See Reference #1 for more information. Prairie Dropseed - fine foliage and inflorescence in summer Little Bluestem is an iconic species of Minnesota prairies that prefers loose, well-drained soil. Grows in clump form, at 2-4’ high. Host plant for several native butterflies, skippers. Showy, bright red in fall with shiny silver seedheads. Little Bluestem - bluish foliage in summer Blue Grama does well in dry, sand to loam soil, not clay. Clump form at height of 12-30”.Horizontal seed heads provide interest. See Reference #1 for more information. Side Oats Grama is related, a bit taller at 2-3’ height, different inflorescence. Junegrass does well in very dry, sandy soils. It is short, compact and upright at 2-3’ and mixes well with low-growing prairie flowers. A cool season grass; grows in early spring, flowers and sets seed late spring or early summer. Tall Native Grasses are generally not recommended for home gardens as they may overtake flowers over time but they can be a feature, screen or backdrop for other plants where more space is available and/or height is desirable. Big Bluestem is found throughout Minnesota. Grows in sand, loam, clay soil. It is tall at 8’, upright and open. It tends to self-sow and dominate and is subject to ‘lodging’ (falling over). Several nativars with different growing habits and color are available. See Reference #1 for more information. Indian Grass is found throughout Minnesota and does well in dry to moist soils (sand, loam, clay) with a height of 5-7’. It is medium aggressive and tends to self sow. It has a good upright form with golden seedheads, looks great with little bluestem and medium to tall flowers at the back of a border or garden. If you haven’t considered native grasses for your landscape before, it may be time to reconsider. Native grasses can be a stunning addition to your pollinator friendly garden. References Benefits of Native Grasses ; explained in three short informative videos by University of MN Extension Professor and Horticulturist Mary Meyer. On the same page as above; Free downloadable book “Gardening with Native Grasses in Cold Climates” by Diane M. Harem and Mary Hockenberry Meyer, includes information on grasses and flowers that together provide for the complete lifecycle of one or more Lepidoptera. UMN Extension Planting and maintaining a prairie garden . Numerous links on selecting Native Plants . Book “The Gardener’s Guide to Prairie Plants” by Neil Diboll & Hilary Cox, copyright 2023, the University of Chicago Press. DNR Mesic Prairie . Native Plant Encyclopedia ; focus is on lakeshore management but also a way to look up distribution of native plants in the state. Minnesota Wildflowers ; a guide to the flora of MN. Sites to visit Minnesota Landscape Arboretum Specialty Gardens ; Ornamental Grass Collection. Current Projects at Dakota County Parks . Noerenberg Memorial Gardens in Wayzata. Many native and other grasses in a formal garden setting. Photo Credit: Alyce Neperud (1-7)
- Marjorie Blare, Dakota County Master Gardener | DCMGV
< Back Newby’s Vegetable Garden Marjorie Blare, Dakota County Master Gardener Spring is the time when many homeowner’s thoughts turn to gardening. New (or not so new) homeowners may want to start growing their own vegetables but are hesitant because they don’t know how to start. In this clever article, Master Gardener and experienced vegetable gardener, Margie Blare provides loads of good advice to the “Newby” gardener about how to start a vegetable garden. Read this article to start your vegetable gardening adventure. Once upon a time, there was a new gardener named Newby . One day Newby thought, “I would like to have a vegetable garden. Then I’d know where my food comes from and how it was grown. I wonder how I can do that?” With a flash of green, a figure appeared. “I can help!” exclaimed Greenthumb . Newby : “Hi Greenthumb , I have questions like, where should I plant my garden?” Greenthumb : “It depends! Choose a spot that gets 6-8 hours of full sun each day. To minimize weeding, consider a raised bed. Keep it simple, perhaps four 2 X 6s nailed together to make a 3 X 8 foot bed. At this width, you can easily reach across it. And, if that spot doesn’t work, you can move it next year.” Newby : “Can I just use the soil from my backyard?” Greenthumb : “It depends! You should get a soil test; watch this video to find out how. Soil tests let you know how much and what kind of fertilizer is needed. It will tell you how much organic matter is in your soil and will give recommendations for healthy plants, with no adverse effects on the environment. You can fill a raised bed with quality soil if your native soil is poor.” Newby : “So, I just put the seeds in the ground?” Greenthumb :” It depends! Some need to be started indoors and others do best when directly seeded.” Read the seed package learn what each type of seeds need. Newby : “When should I plant my garden?” Greenthumb : “It depends! Some crops are cool season; such as peas, spinach, lettuce, and many more. Others are warm season; such as cucumbers, beans, peppers, eggplant, tomatoes, squash and melons. You need to read the seed package. You can also check out this seed-starting calculator .” Newby : “My neighbor’s tomatoes got all black last year. How can I prevent that?” Greenthumb : “It depends! Check out ‘What’s Wrong with my Plant?’ on the University of Minnesota’s website to find pictures of various diseases and insects that may be affecting your veggies. There are recommendations on what to do. Having good sanitation and plant spacing prevents a number of pest problems. You can also ‘Ask a Master Gardener’ at (612) 301-7590. Leave a message and a Master Gardener will research your questions and get back to you.” Newby : “I heard my neighbor talking about zones. What are they?” Greenthumb : “Plant hardiness zone maps show the temperatures of various places in the state and nation. It is necessary to know your zone when buying small fruits like strawberries and raspberries, and perennial vegetables such as rhubarb, horseradish and asparagus, to make sure the plants you buy can withstand the winters in our area. See the map above to find out your zone.” Newby : “Thanks Greenthumb!” Greenthumb : “Happy Gardening!” Photo Credits: Marjorie Blare (1,2,4), Hardiness Map (3)
- Julie Henrichs | DCMGV
< Back Sunflowers - Bright, Beautiful and Fun to Grow Summer is upon us and what is better to grow with your child than flowers that are big, bright and beautiful. Sunflowers come in many varieties and heights and “Yes” they can be planted in containers too. Planting sunflower seeds with children is an incredible way to see the entire life cycle of a plant. This article explains how to engage in this fun and easy learning opportunity. Julie Henrichs Summer is upon us and what is better to grow with your child than flowers that are big, bright and beautiful. Sunflowers come in many varieties and heights and “Yes” they can be planted in containers too. Planting sunflower seeds with children is an incredible way to experience the entire life cycle of a plant. Sunflowers are ideal for planting with children because sunflower seeds are large in size for easy handling, tolerates dry or drought conditions and also is fairly low maintenance. Sunflowers are also “giving” plants - bees and bugs benefit from the flowers while birds eat the seeds produced. Let’s Get Planting Sunflower seeds come in all varieties, size and many colors ranging from yellow, orange, bronze, red, burgundy and even white with a variation of mixed petals. Allow your children to choose the type of sunflower to grow and then ask why they chose the one they did? Was it for the height, the extra fuzzy looking flower or simply the color? If you have height restrictions, refer to seed package for height and spacing guidelines. We think of sunflower seeds always being planted in the ground, but they can also be planted in containers. Choosing the best finished container is important and make sure to base the size of container by the plant height. Items Needed: Appropriately sized planting container (base size on final height of plant) with good drainage Sunflower Seeds Potting Soil Water in watering can or spray bottle Plant labels (optional) Gardening Gloves (optional) Let’s get started: Fill containers with potting soil, leaving dirt an inch away from the rim of the container. Once the container is filled, tap down lightly and add any potting soil as needed. Children can poke a small hole with their finger into the soil. Open the seed packet and have your child plant the seeds about 1-2 inches into the soil in the hole. Seeds can be spaced approximately 6-12 inches apart depending on the sunflower seed type. (refer to the back of the package for planting depth and spacing) Cover seeds and tamp down soil Water gently with a watering can being careful not to disrupt the newly planted seeds or spritz the soil with water making sure the soil is wet Set the newly planted containers in full sun. Continue to check the new plantings for watering needs at least once or twice a day. Once the seedlings have emerged, continue to check to make sure the soil remains moist, but not saturated. Seeds start to grow 1-1 ½ weeks after planting. As your sunflower begins to grow it may require staking to keep the plant upright, especially in strong winds. Sunflowers are unique in that they begin as a seed and also end as a seed. The sunflower plant produces a sunflower bloom/head. When the sunflower head starts to turn brown, the sunflowers can be cut off and either they can be left for birds and other insects or they can be dried and then used later. Sunflowers provide so many benefits – a fun and educational gardening experience, a beautiful display and food for birds and insects. Let’s get planting! Photo Credit: flickr.com (1,2), backgardener.com (3)
- Request a Speaker | DCMGV
Request a Speaker Master Gardeners are available to speak to garden clubs, at workplace seminars or other groups about a wide variety of garden-related topics. We have access to the latest university based research, attend educational seminars throughout the year and have personal interest in many aspects of gardening. Here is a list of just some of the topics we are able to present to your group. Don’t see what you are looking for? Contact our Speakers Bureau and we can help. Please remember that our Speaker Bureau program is run by volunteers and we therefore ask for your patience. Please allow 3-5 business days for a reply. Ideally, we ask that you request speakers a minimum of 4-6 weeks before your event although more urgent requests will be considered and fulfilled whenever possible. We appreciate your understanding. Popular Topics Annuals Bee friendly plants Beekeeping Blueberries Container gardening Composting Herbs Houseplants Invasive plants and pests Orchids Putting your gardens to bed Shade gardening Spring bulbs Square foot gardening Seeding starting Vegetables And more!! Request a Speaker First Name Last Name Email Write a message. Please include the location for the presentation. Submit Your request has been sent.












