< Back The Sensory Garden Kristina Valle, Master Gardener Memories are often tied to our senses and for many of us, our first or favorite memories occurred in a garden. This article will discuss how to create a sensory garden that will enliven the senses, spark old memories, and hopefully make some new ones for first time visitors. For me, the smell and taste of chives brings up one of my first memories. As a toddler, I would walk around my parent’s vegetable garden and happily munch on a chive that my father handed me as he scanned the garden for ingredients to use in our dinner. The smell of a tomato vine brings me back to when I would visit my grandparents and was asked to go harvest a few tomatoes for the salad we were going to have for lunch. The sound of wind moving through trees, or a slow-moving creek reminds me of time spent playing in a forest, completely carefree. A sensory garden can be any size and can be created all at once or in stages. Let’s explore the different senses and what we can add to our gardens to create a unique sensory experience. Taste Herbs can be started from seed or purchased as mature plants and can be grown in either your garden or in a pot. Here are a few examples of plants that will bring taste into your garden space. Herbs: Basil, Rosemary, Thyme, Mint, Oregano, Cilantro Vegetables: Carrots, cabbage, cucumbers, spinach, kale, squash, radish Touch Focus on different textures that you can incorporate into your space. Lambs Ears: a favorite among children Succulents : these can be kept in pots or grown in your garden (some are Minnesota hardy!) Feathered Grasses: run your fingers through the grasses as you walk through your garden Spongy Moss: resilient, unique texture Tree Bark: smooth, peeling or textured Smooth Rocks: stepping stones Tactile Elements : pots, planters, ornaments Smell Some plants give off a beautiful fragrance when the wind comes through or when you brush past them on a walk. Even something as simple as fresh cut grass can be counted as an element within this sense. Lavender: the aroma can help soothe and decrease stress – it is also a great pollinator Herb garden: rosemary, mint, basil, and many others can produce a scent when you rub your hands over the leaves Creeping Thyme: you can release the scent of this plant either by rubbing the leaves between your fingers or by stepping on them as they are often used as a ground cover plant Sight One of the greatest rewards in gardening is being able to sit back and observe a space that you’ve created. There are several ways to bring your garden alive that can be enjoyed through each season. Spring & Summer Different types of bird food and feeders will attract a variety of birds A bird bath or water source with the sound of running water will attract birds Milkweed will attract Monarch Butterflies to your yard and if you’re lucky, they will lay eggs on this plant. Some other plants that attract Monarch Butterflies include: Goldenrod, Butterfly Bush, Cosmos, Lantana, Lilac, Zinnia, Asters, Purple Coneflower, Yarrow and Coreopsis Plant climbing plants over arbors and trellises Include plants with different textures and variegation Incorporate a bench to observe your garden Fall & Winter Some native grasses, like Little Blue Stem, will move from green to blue in the summer and then to red in the fall Burning Bush is another plant that will signal the changing season, becoming a vibrant red in fall As the days get shorter, Autumn Joy Sedum will bring a rosy, pink shade into your garden Enjoy the bright red branches of a Dogwood shrub throughout the cold, gray winter months If you have hydrangeas that bloom on new growth, consider leaving their stems and flowers intact throughout the winter for additional winter interest Sound Sound can be added or attracted to your garden. Water Feature: this will create the sound of water and will also attract birds looking for a place to get a drink and to splash in a bath Beneficial Insects: planting pollinator plants will attract busy buzzing bees as well as other pollinators throughout growing season Ornamental Grasses: wind will move through the grass creating movement and a soothing sound Bird Feeders: attract songbirds by offering a variety of seed mixtures Gravel Paths: listen to the crunch of the gravel as you walk the path through your garden Wind Chimes: add a windchime to your garden to create a beautiful tune as a summer breeze blows through The benefits of creating a sensory garden go far beyond simple enjoyment. These gardens are good for sensory stimulation and development, have calming effects, encourage curiosity and allow for reflection and stress reduction. As Master Gardeners we look for ways to engage with our community and their love of gardening. Master Gardeners have created a program called “Growing Connections” that works hand in hand with the Alzheimer’s Association and focuses on sensory gardening activities. Check out our website for information about Master Gardener events and programs. Photo Credit: University of Minnesota Extension (1,2,3)

< Back Wild Rice (Manoonmin): Minnesota’s Official State Grain Did you know that wild rice is not actually rice but a grain from aquatic grass? It is also the only cereal grain native to North America and is endemic to the Great Lakes area (Minnesota, Wisconsin, and Central-South Canada). If you are interested in learning about the history and harvesting of wild rice, please click here. Janelle Rietz-Kamenar, Dakota County Master Gardener Did you know that wild rice is not actually rice but a grain from aquatic grass? It is also the only cereal grain native to North America and is endemic to the Great Lakes area (Minnesota, Wisconsin, and Central-South Canada). If you are interested in learning about the history and harvesting of wild rice, read on. Wild rice is called Manoomin (“good berry/seed”) by the Anishinaabe. The French settlers called it “folle avoine” (fool’s or wild oats). English settlers called it wild rice or Indian Rice. For the Anishinaabe, wild rice represents spiritual significance, cultural identity and connection to the land. Wild rice also provides nutritional and economic value for the tribe. Wild rice, an aquatic grass, grows naturally in peat and clay-soils of shallow, slow moving waters within rivers and lakes. Some Anishinaabe still harvest wild rice by canoe using flailing/winnowing/knocker sticks to capture the reeds and then knock the ripened grain into the bottom of the canoe. Grain that doesn’t reach the canoe is seed for the following year. But the manual work does not stop there. Manual harvesting also includes: Parching—heating the rice to dry it out and loosen the hulls while not burning the rice Dancing – traditionally the rice was danced upon to thrash the hulls. Nowadays, a rice husking machine called a trasher may be used Winnowing – refers to separating the hulls and chaff from the grain. Traditionally, this is done by using birch bark bowls and the wind carries away the hulls, leaving the heavier grain in the bowls Finishing – involves cleaning and sorting the rice either by hand or with machines. Today, most of the wild rice you see in stores is cultivated. In the 1950s, entrepreneur farmers began experimenting with growing techniques by creating flooded paddies. They then modified harvesting machinery to be used after draining the paddies. Minnesota is now one of the largest producers of wild rice and harvests 5 -15 million pounds annually on 15,000 acres! The three areas where you see the most cultivated rice being grown in Minnesota are: Clearbrook/Gonvick, Kalliher/Waskish, and Aitkin/Deer River. Of note, California is also a major commercial producer with smaller amounts grown in Canada, Wisconsin, Oregon, and Idaho. Regardless of where grown, cultivated wild rice fields serve as a great resource for wildlife. Overall, wild rice is important in Minnesota food traditions in both the native and European-American communities. Wild rice is high in protein, fiber, potassium and phosphorus and is an excellent source of B vitamins. It can be used in soups, casseroles, breads, and meats to name just a few. And did we mention that wild rice is delicious?! https://www.7generations.org/how-to-harvest-and-prepare-wild-rice-manoomin/ https://plpa.cfans.umn.edu/news/castellmillerwildrice https://wildricebreedingandgenetics.umn.edu/sites/wildricebreedingandgenetics.umn.edu/files/2020-11/Ecological%20importance_11_13_20_jak.pdf https://corn.aae.wisc.edu/Crops/WildRice.aspx Photo Credits: University of Minnesota Wild Rice Research Database, https://wildrice.umn.edu/grants-and-projects (1) University of Minnesota, https://top10plantsmn.umn.edu/resources (2) Lisa Olson (3)

< Back Growing Healthy Tomatoes in Minnesota Tomatoes are a beloved staple of Minnesota summer gardens and there is nothing like biting into a juicy, fresh-picked tomato. As popular as they are, unfortunately, tomato plants are susceptible to diseases, disorders, and other issues. Here are some practices you can do to set your tomato plants up for success by reducing problems before they may begin and how to manage through the growing season. Jessie Thompson, Dakota County Master Gardener Pick the Right Plant or Seed Consider growing a disease-resistant variety of tomato. Cornell University has an extensive list of disease-resistant varieties for cherry, grape, heirloom, plum, slicer, and rootstock tomatoes: Disease-resistant tomato varieties | Cornell Vegetables . When growing tomatoes from seed, choose a reputable supplier. Avoid using seeds saved from infected plants as pathogens can survive on the seed. Or if you are starting with transplants, inspect the plant thoroughly. Select healthy plants without any leaf spots or discoloration. Keep it Clean If equipment (like pots, tomato cages, trellis, stakes, and plant supports) has been used before, make sure it has been cleaned and sanitized before reusing. Start by removing any plant debris and soil. Then a 10% bleach solution (1 part bleach to 9 parts water) can be used to sanitize. Ensure garden tools are also clean. Pick a New Neighborhood When planting your tomatoes, choose a location where no tomatoes, eggplant, peppers, or other members of the tomato family have grown in 3-4 years. Pathogens can survive in the soil through winter and could infect the new plants if they are grown in the same spot without crop rotation. Provide Space for Air Flow Space tomatoes apart to provide good air flow. Some growers remove the lower leaves on the tomato plant to increase air circulation and this can also prevent pathogens that may be in the soil from splashing on the leaves. Staking or trellising tomatoes provides support to keep the plants from contacting the soil. Using mulch around the tomato plants is another strategy to reduce splashing on the leaves and provides the benefit of retaining soil moisture. Water and Fertilize Properly A healthy tomato plant will be more able to withstand disease and disorders so take care to water your plant properly and fertilize. Inconsistent watering can be stressful to the plant which can make them more susceptible to disease and exacerbate issues. When watering by hand, avoid overhead watering; instead, direct the water to the base of the plant. Soaker hoses and drip irrigation systems are also ideal methods for watering tomatoes to provide water directly to the roots. Keep leaves dry as much as possible because moisture creates favorable conditions for diseases to spread quickly by bacteria and fungi spores. Water plants in the morning instead of evening to allow foliage to dry quickly if it does get wet. Practice Early Intervention Inspect your tomato plants each week as diseases can be easier to manage if they are identified and addressed early. If you notice spots on the tomato leaves, remove the infected leaves at the first signs of spots. If it has rained or leaves are wet, allow leaves to dry first before working with your plant as bacteria can easily spread on hands and tools. Sanitize pruning tools with 10% bleach solution after using on an infected plant. Up to a third of the leaves can be removed. Recognize Common Problems Common causes of leaf spots include Septoria leaf spot , early blight , and bacterial spot which can look very similar in their early stages. Septoria leaf spot looks like small spots less than ⅛” in diameter with a gray or tan center and dark border and is caused by the fungus Septoria lycopersic i . Lower leaves are infected first and then progresses. It can affect the leaves, petioles, and sepals of a plant. septoria leaf spot; Credit: Michelle Grabowski, University of Minnesota Extension Early blight is caused by the fungus Alternaria solani . It appears as black and brown irregular spots often with a yellow edge on the leaves. The pathogen is most likely to spread in wet weather and high humidity. The spores can spread by wind, human contact, and equipment. tomato leaf with early blight; Credit: Michelle Grabowski, University of Minnesota Extension Bacterial spot looks like small, black round dots about 1mm diameter with a yellow border. The bacteria strains that cause this disease favor high humidity and high temperatures. The leaves, stems, and fruit can all be affected. tomato leaf with bacterial spot; Credit: Michelle Grabowski, University of Minnesota Extension If you notice something unusual with your tomato plant, this is a great resource: What's wrong with my plant? : Garden: University of Minnesota Extension . You can search by symptom to diagnose the issue and explore links with more information and recommendations for management. By implementing these best practices, providing consistent care, and proactive management, you can reduce disease pressure and enjoy a healthy tomato harvest this season. cherry tomatoes; Credit: Jessie Thompson References and for further reading : Tomato leaf spot diseases | UMN Extension Disease management for vegetable crops | UMN Extension Tomato disorders | UMN Extension Clean and disinfect gardening tools and containers | UMN Extension Managing Tomato Diseases, Disorders, and Pests | Yard and Garden Tomato Diseases and Disorders in the Home Garden Key to Common Problems of Tomatoes | University of Maryland Extension

< Back Jicama – Not Just in the South Anymore What starchy, tuberous vegetable has the refreshing crispness of a fresh apple, abundant nutrients and fiber, all with a deliciously low glycemic index? It’s the unassuming, turnip-shaped jicama (pronounced híh-ka-ma), sometimes called “Mexican potato” or “yam bean.” Read on to learn more about this interesting vegetable and a pleasant surprise for Minnesota gardeners. Anita Oakman, Dakota County Master Gardener The jicama plant belongs to the genus Pachyrhizus and is a native of Central and South America. It has been a cultivated vegetable there and in southeast Asia for hundreds of years. The seeds, which range in color from pale to dark brown, have also been cultivated for their high content of rotenone, a toxin used as a pesticide, an insecticide, and a piscicide (fish killer). (Remember the 1950’s B-movie horror flick “Creature from the Black Lagoon”?) In fact, nearly all parts of the jicama plant - its bluish green vining foliage, beautiful bluish purple and white flowers, the subsequent lime green seed pods, and even the light brown peel of the tuber - are known to contain rotenone and should not be eaten. The only safely edible part is the white flesh of the tuber. From seed to harvest, the length of maturity for jicama is 4-9 months. After transplanting seedlings 12 inches apart in well-drained loamy to sandy soil warmed to at least 70 degrees, the plant can be trained up a trellis and fed a low nitrogen, high phosphorus and potassium fertilizer monthly to keep it thriving. For the best root production, flowers should be removed at an early stage. As with nearly any root vegetable, it’s possible for the curious gardener to check on the size of the growing tubers by pulling soil away temporarily. They should be covered up though, to resume growth. Jicama tubers must be allowed to remain in the garden as long as possible, however, the plants will not tolerate frost. Record late season warmth has produced the largest and heaviest yields for commercially grown jicama. So, why feature a vegetable whose digs (pun intended) are in the subtropics? Why tempt Minnesotans with a food item they can find only in a grocery store and not in their own backyard gardens? Wonder no more - jicama seeds can now be found locally and grown locally! Pachyrhizus erosus is a cultivar that produces a smaller root but has the shortest maturity of approximately 150 days. By starting seeds indoors 8 to 10 weeks before the last spring frost and continuing with the above growing instructions, it is possible to produce jicama tubers of your very own. Photo Credits: Photo 1, www.ourfood.nl (All Creative Commons) Photo 2, Powo.science.kew.org (All Creative Commons)

< Back Hydroponics at Home Have you heard of the hydroponic method of growing plants but thought is sounded too difficult to try at home? Hydroponics is a method of growing plants using a water-based nutrient solution rather than soil. Joanna Kapke, Master Gardener Hydroponics growing systems can seem daunting given what we may have seen or know about commercial and large-scale hydroponics; but at-home hydroponics systems can be quite simple and rewarding. When growing hydroponically, you have year-round growing potential, limited disease and insect pressure, no messy soil and even increased and quicker yields than when growing plants in soil. The most accessible hydroponics system for the at-home grower is called the “Deep Water Culture” method. This method consists of a container, water with nutrients and a support system for your plants. This method can utilize either a passive form of aeration (also sometimes referred to as the “Kratky method” due to research done on the concept at the University of Hawaii in the 1980s) or an active form of aeration involving a pump or other method of mechanical water circulation. More information about all forms and elements of deep water culture can be found on the U of M Extension website on their Small-scale hydroponics page. The basics elements for starting your own at-home hydroponics system are as follows: Container : The container you choose should be opaque, clean and made of food-safe ingredients. The size depends on the mature size of your plants or how many plants you will grow in one system. The lid will be important as it will hold the net pots the plants will grow in and keep them suspended above the water. Some ideas for containers include a 5 gallon bucket with appropriately-sized holes drilled in the lid or even a recycled pasta sauce jar (the lid is the perfect diameter to hold a standard net pot) covered in an opaque material such as thick felt or foam craft sheets. Container and growing medium: The most common type of container for your plant when using the Deep Water Culture method is a net pot. It is exactly what it sounds like: a plastic pot with holes that will hold the plant and growing medium, but also allow the root system to grow through it to reach the water and nutrients below in the container. There are many options for growing mediums in a hydroponic system, including rock wool, coconut coir, hydration, pumice or perlite. Whatever medium you choose, ensure it is clean by soaking it in water for 24 hours before transplanting your seedlings into it. Light : Most at-home indoor hydroponics systems will require supplemental lighting-especially in winter. Water : The first and most important element of your hydroponic water is its pH. Water should be tested for its pH levels both before and after adding nutrients. The ideal pH of hydroponic growing water is between 5.4 and 7. The second most important element of your hydroponic water is the maintenance of appropriate levels in your container. In a passive system there needs to be an air gap between the water and the beginning of the plants’ root system. The air gap is where the plants get oxygen. Generally, after the first filling—in which the water should just touch the bottom of the net pot—water should only cover up to half of the root system. Any more than this and the plants may die. Nutrients: Because only carbon, hydrogen and oxygen are available to plants in a hydroponic system, supplemental nutrients must be added to the water. Nutrient mixes specifically for hydroponic use are easy to find and come in many varieties. Plants to try and seed starting : The plants that do best in indoor hydroponic systems are lettuces, greens and herbs. When selecting seeds for your system, look for a hydroponics-friendly logo or signifier that many seed companies use. Seeds can be started in plugs of growing medium that will then be transplanted to the net pots when their roots peek out of the bottom. In addition to growing hydroponically indoors, hobby gardeners can grow many crops hydroponically outdoors in the summer. Other more advanced hydroponics options exist that can be adapted to home use as well. More information on outdoor hydroponics and advanced hydroponics systems such as nutrient film or drip systems can be found on the U of M Extension website on their Small-scale hydroponics page. This page has links to external and researched sources of information as well. If the supply resources and information available on the internet is overwhelming, there are several companies in the Twin Cities metro that can provide in-person guidance to get your own at-home hydroponics system started; for example: Ecogarden Supply ; St. Paul and Greener Gardens; Richfield. Photo credits: University of Minnesota Extension (1, 3), Joanna Kapke (2)

< Back Disruption to Delight: Partnering with the City to Start a Bee Lawn Pat Peschman, Dakota County Master Gardener Are you interested in doing more to help our native pollinators? If so, consider turn all or part of your lawn into a bee lawn. A bee lawn can provide a recreational space for you and it can also provide much-needed food resources for bees and other beneficial pollinators. This article describes Master Gardener Pat Peschman’s experience with developing a bee lawn in her yard and includes some excellent advice. In 2024, my husband John and I received a dreaded letter announcing summer-long infrastructure and road maintenance that would impact our property. Initially, we only recognized the losses—our boulevard native garden had to move, our driveway would be torn up, and trees would be removed. However, my husband recognized an opportunity. We had discussed converting part of our lawn to a "bee lawn," to create habitat for pollinators. John developed a relationship with the project manager for the construction, and through this partnership, our new bee lawn became a reality. Benefits of a Bee Lawn A bee lawn is a combination of turf grass and flowering plants. It is low-growing, allowing it to replace a traditional lawn while maintaining a manicured appearance and tolerating some foot traffic. Bee lawns offer several advantages over turf lawns including: Pollinator Support: Flowering plants provide nectar and pollen throughout the growing season. Low Input: Requires less water, fertilizer, and herbicides. Low Maintenance: Requires less mowing. (My husband only mowed our bee lawn twice the first year!) While bee lawns should not be our only approach to feeding pollinators, they can be a piece of the puzzle. 1. Location and Site Prep Select a site with well-drained soil that receives full to part sun (at least 3-6 hours of direct sun per day). Avoid heavily trafficked areas to prevent soil compaction. The site will need to be prepared to receive and support the seed. The "Construction" Method: We had a unique advantage because the city tore up the lower third of our lawn. Instead of resodding, they collaborated with us to create spaces for the bee lawn, bringing in clean black dirt and even watering the area. The DIY Method: If you do not have construction assistance: Ideally, remove the lawn with a sod cutter or rototiller. If weed pressure is high, solarize the area by applying clear plastic for several weeks. At a minimum, cut existing lawn very short and rake heavily to expose the soil. layout of bee lawn 2. The Seed Mix Bee lawn seed is a combination of cool-season turf grass, particularly fine fescues, and flower seeds. Kentucky bluegrass will work as well but requires more input. Recommended flower species include: Dutch White Clover Self-heal Creeping Thyme Note: These mixes are commercially available at many garden centers or through companies that support or install bee lawns. Self-Heal and White Clover 3. Seeding Timeline Late Fall (Ideal): Also known as "dormant seeding" (early Nov to mid-Dec). Spread seed evenly over prepared soil, a seed spreader works well. Winter weather works the seed into the ground, and minimal watering is required. Spring: Wait until mid-May (after frost danger). Lightly rake the seed into the soil. This requires frequent watering (lightly, 2-3 times per day) until germination. In both seasons, apply a light straw cover so birds do not eat your seed. 4. Maintenance and Care Watering: Once established, only water during prolonged drought. Fertilizing: Dutch white clover fixes nitrogen in the soil, so fertilization is rarely needed. Mowing: Wait until the lawn is 5–6 inches high, avoid mowing when the lawn is flowering. Only remove the top one-third of the plants. Leave the clippings on the lawn. Mow in late fall to prep the lawn for winter. Weeding: some hand weeding may be required the first season bee lawn flowers and ruler measuring height A Buzzing Success Since establishing our bee lawn, countless individuals walking past our property have stopped to inquire about the lawn and offer compliments. We have definitely seen our lawn abuzz with pollinators. This year’s goal is to try to count and identify our visitors! References: Planting and Maintaining a Bee Lawn: https://extension.umn.edu/landscape-design/planting-and-maintaining-bee-lawn#preparing-to-plant-2941611 Consider a Flowering Bee Lawn to Help Pollinators: https://www.canr.msu.edu/news/consider-a-flowering-bee-lawn-to-help-pollinators What is a Bee Lawn: https://northerngardener.org/bee-lawn/ Photo Credits: Pat Peschman (1,3) University of Minnesota Extension (2)

< Back How to Care for Blueberry Bushes This Spring Do you love to eat blueberries? No blueberries are better than the ones you grow in your yard. If you are growing blueberry bushes in your yard or want to do so, read this article for some tips on what you can do this spring to help your blueberry bushes flourish. Joy Johnson, Dakota County Master Gardener I love to eat blueberries and also wanted to add some bushes to my yard for pollinators and privacy and beauty. So, adding a few blueberry bushes seemed to be a good option. We planted 5 blueberry bushes a couple of years ago and have moved them around the yard a couple of times, trying to find a location where they would thrive. In the process, I’ve learned several things that you can do for your blueberries in early spring before they’ve even budded that will help them thrive. Blueberries have very shallow roots, so remove all weeds and grasses that may have grown up around the bushes, then add a layer of mulch 3-4 inches thick. After that, look carefully at your bushes and prune out any dead or dying branches. Also prune out any conflicting growth; branches that are growing into the center or crossing over or rubbing against other branches. Another thing to do is to step back and look at the overall shape of your bush and prune so it has a balanced look on all sides. For smaller branches, use a bypass pruning shears or snips. For larger more mature bushes and branches, use a pruning saw. You should do this pruning while the bush is fully dormant, and no buds have formed. Blueberries need an acidic soil with a pH between 4.5 -5.5. There are a couple of ways to amend the soil around your blueberry bushes. You can use elemental sulfur pellets available at Walmart, Fleet Farm, Ace Hardware and on Amazon. Wear gloves when you apply. Wait to apply until the soil temperature is at least 55 degrees. Sprinkle 2 handfuls in a ring around the plant, on top of the mulch and then lightly rub it into the mulch. You can also use a fertilizer that has a 5-3-3 balance or get a fertilizer like Plant Tone or Holly Tone. These are usually promoted as evergreen and azalea food (those plants also like a more acidic soil). Only fertilize once this year. Then you should add a layer of compost 2-3 inches thick in a 2-foot diameter ring around your bushes. Make sure your compost smells like grass, not garbage, to ensure that it is fully composted. Next add 3 inches of a natural mulch, not dyed. For example, bark mulch, woodchips, cedar or hay, or pine straw. Mini pine bark nuggets are mildly acidic and can help acidify your soil. Make an 18–24-inch ring around your bushes, 2-3inches deep. The last step is to wet down the entire area. Keep in mind that doing all these things, like adding compost and mulch, won’t last all year. Check your bushes throughout the growing season watching for decomposition, bare soil, and/or weeds starting to creep in. Pull the weeds, reapply a 2–3-inch layer of mulch as needed. Then look forward to a delicious blueberry harvest. Photo Credits: University of Minnesota Extension (1), Joy Johnson (2-6)

< Back Spotted Horsemint (Monarda punctata): A Beauty with Many Names Jim Lakin, MD Master Gardener Are you looking for a good low-maintenance plant for a prairie, pollinator, native or butterfly garden? Consider Spotted Horsemint. This native is valuable to pollinators as it attracts butterflies, moths and hummingbirds. It is a great source of nutrients to a number of native specialist bees. It will look great in your garden as a border or mass planting. It seems like the prettier and more agreeable the plant the more names it collects. This is certainly true of Monarda punctata. She’s called Dotted or Spotted Horsemint, Dotted or Spotted Bee Balm or sometimes just Bee Balm to be confused with true Bee Balm ( Monarda fistulosa) that we talked about last month. I point this out not just to prove that Linnaeus was right to assign unpronounceable Latin names to everything that grows. To make certain you’re getting the right plant, be sure to select Monarda punctata when you are looking for spotted horsemint in your local nursery or seed catalogue. When you do get the real thing, you’ll be acquiring a hardy perennial herbaceous that is native to Eastern and Central North America all the way up to Zone 3a. This should tell you it’s a pretty tough customer in addition to being a showy addition to your summer garden. From July through September, it produces yellowish to purple-spotted 3-to-6-inch flowers in whorls on a densely packed elongated spike. Below the flowers, large, purplish leaf-like bracts set off the arrangement. Being a member of the mint family Lamiaceae, spotted horsemint puts out runners to form fairly large clumps if left to its own devices. It is not considered to be too aggressive, however. Plants tend to grow to about 1 to 2 feet, occasionally taller. You should space them out by 12 to 24 inches when planting. It is important to allow for air circulation among the plants as they are susceptible to powdery mildew and rust. However, this usually occurs late in the season after flowering. If it is a cosmetic problem, prune the affected stems. Spotted horsemint likes full sun but will put up with part shade (direct sunlight for 2-6 hours per day). It does best in loam, silt or sandy soil which can be an issue here in our clay-ridden Minnesota soil, although I’ve not found that to be too great a problem with Monarda . As you would expect, it is found in the wild in prairies, sandy areas, rocky woodlands and coastal plains. It will even self-seed in almost pure sand. The prairie strains at least are fairly drought resistant. Spotted horsemint is of substantial value to the native wildlife attracting a plethora of butterflies, moths and hummingbirds. It is a great source of nutrients to a number of native specialist bees. Happily, it is not a valuable food source for deer or rabbits who tend to leave it alone unless things are getting desperate. So, if you are looking for a good low-maintenance plant for a prairie, pollinator, native or butterfly garden consider spotted horsemint. As a border or a mass planting, it does great! Photo credits: www.flickr.com (All Creative Commons) (1), Plantjourneys.blogspot.com (All Creative Commons) (2)

< Back Fruit Tree Pruning Advice I Could Have Used 30 Years Ago Sally McNamara, Dakota County Master Gardener Are you afraid to prune your fruit trees? Are you confused about when and where to cut branches? Master Gardener Sally McNamara learned some lessons the hard way about pruning fruit trees. She is happy to share the wisdom she has gathered over the years so you don’t have to make the same mistakes. Learn about how to protect your trees and prune them properly to keep them healthy and help you harvest the fruit easier. By the time I learned that apple trees, and fruit trees in general, take well to pruning, my apples and pears were well beyond reach. Fortunately, a family dog scratched all the bark off several of them resulting in death, so we were able to start over. (A chicken wire cylinder would have prevented that - so another lesson learned too late). On the new ones we learned that snow ABOVE the tree wrap makes rabbits happy and trees dead. Build a complete fence around very young trees early - those rabbits are active right after fall planting. Now, late February, early March, is the time to prune most trees, apples included. Spring sap will help heal the cuts and renovation invigorates the tree. Tree structure is visible without the impediment of leaves. If there is disease or death, marking those branches in the fall can be helpful for spring pruning. For apples trees which are intended for harvest, restraining them to reachable heights is an achievable goal, especially while they are young. While cutting the main leader is typically NOT what to do when pruning, it IS the solution to controlling heights in fruit trees. Keeping the branches reaching at an angle reaching outward and not so much up is the goal. When looking at where to cut on any tree, consider how to let light and air in and encourage growth out and up . Cut back to an, outward facing bud on the branch. Cut diagonally above the bud, not leaving an awkward stump to encourage entrance for insects and disease. When cutting major branches, for example dead ones or lower ones, to allow for maintenance underneath, cut back only to the branch collar leaving the collar materials to create a natural growth over the pruning wound. (Maintenance underneath an apple tree would include removing dropped apples and leaves to diminish the chance of disease and insects persisting to the next season.) Geriatric apple trees take well to restoration through dynamic pruning. Go for dead, damaged, diseased and crossing first. Then open up for light and air. This might be a multi-year process as removing more than 1/4 of the tree in any one season is discouraged for the health of the tree. Select upward angled branches - horizontal ones can be wet and vertical ones tend not to fruit. Never forget to take those before and after photos! Fruit pruning is an important topic and the U of M has some excellent resources. Visit the U of M Extension for three short but effective videos. Many late winter/early spring days call us to get outside and pruning is the perfect activity: it needs doing, it requires lots of motion and decisions and signals the start of a new season. Photo Credit: Dyck Arboretum (1), deepgreenpermaculture.com (2), North Dakota State University (3)

< Back It’s August - What Can You Find in Your Garden? Julie Henrichs, Master Gardener The days of August bring a time for not only harvesting and additional plant and flower care, but it offers a chance to go out exploring in your garden with the kids in your life. It can be as simple as flower color or texture recognition to plant, fruit, bug and vegetable identification. Items found can be crossed off a list, collected for further exploration or even better - eaten fresh. Ready, set, explore! The days of August bring a time for not only harvesting and additional plant and flower care, but it offers a chance to go out exploring in your garden with the kids in your life. It can be as simple as flower color or texture recognition to plant, fruit, bug and vegetable identification. Items found can be crossed off a list, collected for further exploration or even better - eaten fresh. Ready, set, explore! Before you begin, remember to adjust your exploration so it is age appropriate and safe for all. Scavenger Hunt options are listed below based on a specific type of garden you may have but any can be combined. ( Italic items are more challenging or may require more research for older children. ) Garden Scavenger Hunt Flower Garden/Flower Planters Find a red flower ( Find a salvia bee balm or geranium flower-how many petals are on each stem?) Find a Hibiscus plant ( Are hibiscus in Minnesota considered an annual or perennial? Answer: There are different types of hibiscus. Some are considered tropical and are annuals unless brought inside for the winter. There is also a perennial hardy hibiscus that can be grown in Minnesota Find a fragrant smelling flower. ( Name the flower found. Do you think marigolds have a fragrant smell?) Find an annual plant. Find a perennial plant. What makes each type of plant an annual or perennial? What is a biennial? Answer: Life Cycles = annual-1 year (marigolds, impatiens); biennial-2 years (foxglove, dianthus) and perennial more than 2 years (hostas, daylilies) Vegetable/Fruit Garden Find a green vegetable ( Find a green bean. What is the difference between a bush bean and a pole bean? Answer: Bush Beans=lower and more compact growing plants; larger harvests over a shorter period of time; usually planted in rows. Pole Beans=vining and climbing plant; smaller harvests but extend over entire growing season; need trellis system to grow on) Find an herb ( Identify the herb found and taste it. What can this herb be used for? Answer: Examples - Basil=pesto; Oregano=pizza; Lemon Balm=tea, salads) Pick a ripe tomato ( What type of tomato did you pick? Example-Roma, Cherry, Grape, Yellow) Find an orange vegetable (Examples: peppers, carrots, pumpkins) Find a root vegetable or the tops of a root vegetable ( What is a root vegetable? Answer: the plant parts eaten are underground-examples are carrots, potatoes and radishes.) Bugs and Leaves Find a bug and explain what it is doing ( Identify the bug found - does the bug benefit or harm the garden vegetation?) Find a tomato plant and look for an unhealthy leaf ( What would make my tomato plant unhealthy and what do the leaves tell me? Answer: pests, disease or an environmental problem. Example: Yellowing leaves can mean a nitrogen, iron, magnesium or potassium deficiency or overwatering. Find a honey bee and tell us three characteristics of the bee. Answer: striped abdomen; amber brown color and four clear wings attached to the thorax. ( Why are honey bees important to our garden? Answer: honey bees are essential for pollinating plants) Find a leaf in the garden that has been chewed on by an insect. ( Turn over the leaves, look near the base of the plants for the bug responsible for the chewed-up leaves. Identify the bug.) Getting outside into your gardens are so much more fun when shared with the children in our lives! Photo Credit: Pixabay.com (1), pxhere.com (2,3)

< Back Let’s Grow Cranberries! What is Thanksgiving and Christmas without the sweet and tart flavors of cranberries? Did you know that 20% of the cranberry harvest is consumed Thanksgiving week! Wisconsin is the number one producer of commercially grown cranberries in the U.S. while Minnesota has only one commercial cranberry farm in the state. But have you ever asked yourself if you can grow cranberries in your garden? Read this article, if you are interested in growing or just learning more about cranberries. Janelle Rietz-Kamenar, Dakota County Master Gardener Wisconsin is the number one producer (or 60%) of commercially grown cranberries in the U.S. For Wisconsin, it’s a $1 billion industry covering more than 21,000 acres with over 250 farms. By contrast, Minnesota has one commercial cranberry farm in the state located a few hours north of the Twin Cities. But have you ever asked yourself if you can grow cranberries in your garden? If you are interested in learning more about what it takes to grow cranberries, read on. Large Cranberry (Vaccinium macrocarpon) is a native plant whose berries are similar to what we purchase in the grocery store. The native woody perennial plant grows naturally in bogs and sphagnum swamps which are common throughout central Minnesota, eastward through the Great Lakes, up into New England and parts of Canada. It prefers full sun. The plant height is only 4 to 6 inches! The fruit is 1/3 to 2/3 inches in diameter. Cultivated varieties of this plant found in the stores are even larger. The flowers are white to pinkish (size ¼ to 3/8 inches long) that resemble a small lily. The bloom season is June through August. The leaves are leathery and evergreen and measure 1/3 to 2/3 inches long. The cranberry native plant can be grown in Dakota County but the soil has to be amended significantly in order to do so. Much of Dakota County has clay and alkaline (pH around 6-7) soil. Cranberries prefer acidic soils with a pH of 4.0 to 5.5. They like moist, well-drained sandy soil so you need to emulate this environment. Their roots, however, do not like standing water. So, planting them in a sunny, raised bed location where you can add compost and sand will create the desired environment for them to grow. Plant cranberries in early spring or early fall. Plant them 2-3 feet apart to allow for growth and spread. Please note that the cranberry plant roots, called stolons (runners), sprawl out horizontally and create dense mats. Because of the shape of their flowers, cranberries do not usually self-pollinate but rely heavily on bees. They produce green berries which turn white and eventually a deep red when ripened. It usually takes 60 to 120 days to fully ripen (average 80 days). Even though they can create dense mats, you still need to weed and prune them as well as maintain their acidic soil. Commercial growers will vary the planting and harvesting processes based on the fruit’s end use such as fresh fruit, dried cranberries, juice or sauces. They will be dry harvested for fresh fruit with a mechanical picker similar to a lawn mower which rakes them up. More often, commercial cranberries are wet harvested, which means the ground is flooded with 6 to 8 inches of water. Then specialized tractors with agitators and rollers will loosen the berries from the plant and allow the berries to float on top of the water where they are loaded onto a conveyor. A home gardener will obviously pick them manually. While this article has focused on the native Large Cranberry, it should be noted that Minnesota also has another native plant called Vaccinium oxycoccos (Small Cranberry). Moreover, you may have heard of American Highbush Cranberry (Viburnum opulus var. americanum) which is not a cranberry at all but a berry-like drupe that turns translucent red upon maturity and has a single seed in it. The fruit tastes similar to a cranberry, hence the name. They are a great shrub though, especially for windbreak plantings. It may be a challenge but if you want to supply your own cranberries for next year’s holidays, do some research and give it go. https://fyi.extension.wisc.edu/impacts/files/2024/09/WisconsinCranberriesSupportingaBillionDollarIndustry.pdf https://extension.illinois.edu/blogs/good-growing/2019-11-12-cranberries https://minnesotawildflowers.info/shrub/large-cranberry https://minnesotawildflowers.info/shrub/small-cranberry https://minnesotawildflowers.info/shrub/american-highbush-cranberry Photo Credits: Peter Dziuk, Minnesota Wildflowers (1-2), Wisconsin State Cranberry Growers Association (3)

< Back County Hosts Seed Collection for Dakota County Master Gardener Volunteers Sam Talbot From backyards to boulevards, native plants are popping up throughout Dakota County. The burgeoning interest from homeowners to include prairie species in their gardens, coupled with incentive programs, such as “Lawns to Legumes” -- has created a novel demand for native seeds and how to grow them. In partnership with Dakota County Parks, Master Gardeners are uniquely poised to help bring pocket prairies to local neighborhoods. As the tallgrasses and wildflowers turned to seed in the fall, volunteers and University of Minnesota Extension staff met in the county parks to operationalize those efforts. Sam Talbot, then a University of Minnesota Extension Educator, joined two groups of Dakota County Master Gardener Volunteers (DCMGVs) in late-September to collect native plant seeds from restored prairies at Lebanon Hills and Whitetail Woods Regional Parks. The first group met at Lebanon Hills Regional Park’s Equestrian Trailhead and the other, at Whitetail Woods. In each location, the Master Gardeners—Jo Kapke, Pat Peschman, Roger Grabowski, Robert Hatlevig, Kathy Anderson, Janelle Rietz-Kamenar, Pat Ramel, Christina Libaire, Mary Beth Kufrin, Sue Light, Margie Blare, Katie Possis, and Marie Stolte—looked out over tall grasses that swayed hypnotically in a stiff wind. Sam explained that they were looking at some of the county’s earliest restored prairies. They were planted when restoration efforts allowed for seed to be sourced throughout the Midwest. Today, the county collects and uses native seeds from its own remnant prairies (or the seeds of those plants’ descendants) or buys native seeds from within 150 miles of Dakota County. The goal is to grow the same types of plants that have successfully supported local insects, mammals, and birds for thousands of years. Seed collectors should always have permission before collecting seeds from any site. Since the seeds from these older restored prairies aren’t used as a source for new restorations, DCMGV was allowed to collect them. Some of the gathered seeds would be cleaned and packaged, then placed in the Master Gardeners’ free seed library at Farmington Library for any county resident to grow. The rest of the seeds were grown in individual DCMGV homes over the winter and sold at the DCMGV May Plant Sale . Proceeds from the sale support 30 of DCMGV’s programs, including children’s and community gardens throughout the county; raingardens created in conjunction with the City of Mendota Heights; and a new vegetable garden grown cooperatively with the County Juvenile Detention Facility in Hastings. Free seed library at Farmington Library In the fall, it’s much more difficult to identify plants, especially after the flowers (and sometimes, the leaves) have faded and dried. And when many species of plants fill a prairie, it helps to know how high to look and what to look for. Sam arrived early and cut stems to show the seed-bearing structures with leaves and seed heads. Each stem stood in its own bucket, along with an envelope with the species name. He answered questions about plant height and where they might be found in the vast prairie, then explained that no more than one third of the seeds on each plant should be gathered. The rest would feed wildlife over winter or fall and potentially reseed. Cup Plant seeds Seed shapes and sizes differ wildly. Cup plant’s seeds are roughly triangular and black with a brown ring around the edge; they are about an eighth of the size of a dime. Prairie cinquefoil’s are tiny as sesame seeds and white, with multiple capsules per stem. Wild bergamot’s almost invisible brown seeds sit loosely in hollow tubes that are packed together on a single seed head, just waiting for the wind to rustle and spread them. With a better understanding of what they were looking for, the DCMGVs headed out into the prairie. Each volunteer gathered one type of seed in a bucket, then took a different bucket to collect. Wild Bergamot seed heads At the end of the evening, buckets were emptied into envelopes. Sam brought all of the seeds to Lebanon Hills to dry. In winter, he hosted another DCMGV event to clean those seeds, removing chaff, leaving only the seeds for planting. “These events were such a great way to connect the Master Gardeners with the County’s natural resources,” Sam said, “and to explore our restored prairies through a completely different lens. I’m excited to continue our native plant conversations this winter as we discuss the next steps in the propagation process.” Photo credit: Dakota County Master Gardeners (1,2), flickr.com (3), Courtney Celley/USFMW (4)