< Back What Are Plants Doing in Winter? Valerie Rogotzke, Master Gardener Read this delightful article with your children about how plants survive winter. How are plants like animals in their amazing self-preservation strategies? Engage in the fun and education experiments with the child in your life. Our Minnesota winters can be quite cold and snowy! We have warm houses and heavy coats and mugs of hot cocoa to keep us cozy all through the winter, but what about all the living things outside ? How do they make it through the cold season? Animals who live outdoors don’t have buildings or mittens, but they do have their own winter survival tricks. Squirrels and rabbits build warm nests, bears and frogs will hibernate, and insects and birds often migrate, flying south to warmer places for a vacation until spring returns to Minnesota. Without arms to burrow into the ground, wings to fly away, or arms to build nests, which of these tricks can plants use to survive winter? How do plants survive the cold? Believe it or not, plants use many of the same tricks that animals use. Let’s look at three examples. SQUIRRELS You might spot a squirrel on a cold winter day, running to one of its many hiding spots to find a few nuts or seeds to eat. They enjoy lazy winters, mostly snug in their nests or out on a food run, because they worked all summer gathering food and bulking up their nests for the winter. Which plant is like this, alive and active through the winter? A. Deciduous trees, like maples or oaks B. Tender bulbs, like dahlias C. Evergreen or coniferous trees, like spruces or firs D. Hardy bulbs, like tulips If you said C — Evergreens, you’re correct! Evergreen trees continue to be active throughout the winter, just like squirrels. They keep their green needles all through the winter months because they’re coated in a waxy shell that protects the water inside each needle. Furthermore, their roots can keep growing deep in the earth because the soil four or five feet below the grass isn’t frozen. FROGS If you have frogs in your garden in the summer, you will notice that they go away in autumn. As our Junior Winter Garden Detectives might remember, frogs survive winter by going into a deep sleep called hibernation, and they also make a special kind of antifreeze liquid in their bodies that keeps them from freezing solid. Which plant is like this, going to sleep but not freezing? A. Deciduous trees, like maples or oaks B. Tender bulbs, like dahlias C. Evergreen or coniferous trees, like spruces or firs D. Hardy bulbs, like tulips If you said A — Deciduous trees, you’re correct! Deciduous trees don’t disappear completely like frogs, but their leaves certainly do! A maple tree will drop its leaves in autumn because they are too delicate to survive the winter. The deep sleep that trees go through is called dormancy instead of hibernation. As for that antifreeze liquid that the trees make in winter to keep from freezing? You have probably eaten it on pancakes, because it’s maple syrup. CANADA GEESE It’s hard to miss Canada geese on our lakes in the summer. It’s even harder to miss them when they fly south in autumn, honking noisily in their V-shaped formations in the sky. Which plant is like this, leaving the cold for warmer climates? A. Deciduous trees, like maples B. Tender bulbs, like dahlias C. Evergreen or coniferous trees, like spruces D. Hardy bulbs, like tulips If you said B — Tender bulbs, you’re correct! You might have even been with the gardening grownups in your life when they dug up all their tender bulbs at the end of summer. These bulbs cannot fly to Florida for the summer, but go instead to the warmth of a garage until it’s time to plant them again the following May or June. You might have noticed that we didn’t have any animal examples for hardy bulbs. Why is that? Well, this last winter trick for plants is quite unique— vernalization . “Vernal” is just a fancy Latin way of saying “spring,” so vernalization is about the process plants go through to get ready for spring blooming and flowering. We’ve already seen that some flowers, like tender bulbs, just aren’t tough enough to survive the snowy winter and need to be brought inside. What about the plants that are strong enough to survive the winter? This includes hardy bulbs, but also apple and cherry trees and many vegetables like cabbages and carrots. Their flowers are all ready to produce another blossom in fall, but they don’t. The cooling weather puts a flower blocker onto the plant that stops new flowers from growing. (If you have cherry or apple trees, you can go outside and see the buds that have formed but not bloomed.) What removes the flower blocker? Several weeks of cold weather. By the time the cold weather has removed the flower blockers, it’s springtime—time for new flowers to start to appear! DO: Try These Experiments FREEZER EXPERIMENT on deciduous and evergreen leaves. Gather an avocado and a piece of lettuce or spinach. An avocado has a waxy outer shell like a spruce needle, and a piece of spinach is unprotected like a maple leaf. What do you think will happen when you put them in the freezer for 24 hours? For a week? Write down your hypotheses on a piece of paper. Next, place both in your freezer. Check on them at 24 hours and again at one week. What has changed? Now let them thaw out on your kitchen counter. Which one has survived the cold best? VERNALIZATION EXPERIMENT in the garden. If you grow carrots in your garden in the summer, try leaving a few in the ground in the fall. (This will be difficult, since homegrown carrots are delicious.) A beautiful white flower that looks like Queen Anne’s lace will be awaiting you. By letting this biennial plant live out its second year, you are witnessing vernalization—the flower blocker has been taken off by winter, and now the carrot flowers are in full bloom. Further reading and listening for adults on vernalization, both from vernalization expert Dr. Richard Amasino from the University of Wisconsin-Madison : https://grow.cals.wisc.edu/deprecated/food-systems/winter-awakens-spring-flowering https://www.youtube.com/watch?v=hcvmlYroJ1A Photo credits: Pix4 Free (1), Pixnio (2)

< Back Rose Mallow - A Rose of the North Jim Lakin, MD, Master Gardener Have a riverbank, marsh, or rain garden to manage? Consider adding the lovely, long-blooming Rose Mallow. This article will tell you why and how. Hibiscus lasiocarpos As Juliet observed of her beloved Romeo, “What’s in a name? That which we call a rose by any other name would smell as sweet.” We may then ask, “Would that which we call a rose be less beautiful if it is not?” To this I would unhesitatingly say, “Yes in the case of the rose mallow”. H. lasiocarpos and H. moscheutos are nearly identical members of the mallow family (Malvaceae). They are native to most of the Lower Midwest and northward to areas around Lakes Michigan and Erie. Their closely related cousin, the somewhat more cold-tolerant Halberd-leaved rose mallow ( H. laevis ) is native to Southeast Minnesota and up the Missouri River Valley. The rose mallows are hardy through zones 4-9. These perennials are closely related to the much-prized tropical hibiscus. Halberd-leaved rose mallow As you might expect, this gorgeous plant has been hybridized into a large number of attractive cultivars available at your local nursery. The value of these cultivars to our pollinators remains to be determined. There is no question, however that the three native species are key players in the ecological web of the Northern Midwest. They are very nectar and pollen rich, being great additions to a pollinator garden. Halberd-leaved rose mallow The rose mallows are essentially a wetlands plant found around lakes and rivers. They may even be seen growing in standing water. They do well though in moist, well-drained soil in full sun. If they are in a bed, remember to water them during dry, mid-summer weather. They eventually grow to about five feet so you should keep that in mind if inserting them into a border garden. They do well as a backdrop to sun loving ground covers. Rose mallow is slow to emerge from dormancy but once in gear it is a rapid grower, putting on as much as an inch per day. The blooms are quite showy, appearing from July to September so you would do well to mix them with earlier blooming perennials such as Jacob’s Ladder or creeping phlox. The flowers are from three to five inches across with a red center “eye” from which the stamen protrudes. Flower petals may vary from white to shades of pink. Once established, application of a slow-release fertilizer in the spring can enhance growth. While you are at it, pruning back the old growth to about six inches will help to make way for the new foliage. Deadheading usually is not necessary. Rose mallow winters over pretty well although putting a couple of inches of mulch over the plants in the fall will reduce the chance of winter kill. So, if you have a riverbank, marsh or rain garden to plant, you would do well to incorporate the lovely rose mallow. Photo Credit: Taylor Creek Nursery (1,2,3)

< Back Strawberry Asparagus Salad and a Challenge! Joy Johnson, Master Gardener It’s July and some of your vegetables and fruit are ripe for picking – yay! Two of these early products are asparagus and strawberries. And, luckily, they go together in a delicious salad. Read Joy Johnson’s article for an easy recipe. And, keep reading for a more difficult recipe for Strawberry Cucumber bread. If you’re up for the challenge, you will be rewarded with a delicious treat! Did you know that asparagus and strawberries go well together in two ways? One way is to do companion plantings with groups of asparagus inter-mixed with strawberry plants. Because the asparagus grows tall and starts sprouting out of the ground ahead of the strawberry plants, you can grow them together and harvest them at nearly the same time. The second way is to eat them together. Their flavors are complimentary and make a fresh summer salad. Here is a very simple recipe that pulls together in no time. You can jazz it up by adding sliced almonds, poppy seeds, goat cheese or crumbled feta or blue cheese. I didn’t have those ingredients on hand, so I’m keeping it simple tonight! Strawberry Asparagus Salad Ingredients: 2 cups asparagus, cut in pieces and blanched 2 cups strawberries, sliced Dressing: ¼ cup lemon juice 2 TBSP vegetable oil. 2 TBSP honey Directions: Toss the asparagus and strawberries together in a bowl. Set aside. In a small bowl, combine the dressing ingredients and mix well. Pour dressing over salad and toss. Chill before serving. Strawberry Cucumber Bread – If You Like a Challenge! This colorful bread can be served at breakfast or as a dessert or in the middle of the day with a cup of tea or coffee. I came across this recipe when I googled “spring breads”. It has two of my favorite foods in it: strawberries and cucumbers, which I thought was an interesting combination for a quick bread. It was very challenging to make! First, I had to clarify butter. I didn’t start with a small enough pan, so when I had to scrape off the butter foam without dipping my spoon into the clear layer underneath, that wasn’t going to work. So, I dumped it into a smaller pan, which completely negated the instruction to not stir it or disturb the layers in any way. I gently scraped off the foam after waiting an extra hour with the pan over really low heat, and I figured it would re-layer itself if I waited long enough. Then I was supposed to separate the clarified butter from the water, which I could do by pouring it off. Hmm, it all looked the same to me. So, I went back to my computer to get some work done (that I get paid for) and left the pot on very low heat for another hour. When I came back into the kitchen, there was the butter - thick and smooth, but definitely not clear. I scooped it out of the pot so I could measure it and discovered about a teaspoon of water underneath. I did pour that off. I used this butter in the recipe, but I can’t say if it met the definition of ‘clarified’. The next challenge was the baking. It flowed over my bread pan and all over the oven floor. I scraped the bottom rack and the bottom of the oven clean as soon as I discovered it, so it wouldn’t start on fire, which was after about an hour of baking. The bread should have been done at that point. But it wasn’t even close with the hot batter still running over the side of the pan. So, I covered it with a tent of foil in an effort to get the inside baked and not brown the outside any further. I checked it every 15 minutes. It still wasn’t done and was still volcano-ing onto the oven floor. It ended up in the oven for an extra 40 minutes (at least, I went out to rake the lawn!) and then I gave up and took it out. I put it in the microwave for 2 ½ minutes on high to get the inside cooked. The next challenge was getting it out of the bread pan. I let it cool on a cooling rack until it was just warm. I had greased and floured the pan before filling it. I gently went around the edge with a butter knife, sawing through the dark parts where the batter had flowed over the pan. Tipped it over - no movement. I went around the pan with the knife again, twice, then turned it on one side and worked on that side, turned it over to the other side and worked on that side. It finally came free in one piece! Of course, I sliced it and ate a piece right away. It was delicious , especially when I hit a pocket of the strawberry preserves, but I’m not sure it was worth all the effort! Strawberry Cucumber Bread (from Bon Appetite Magazine) modified slightly by me Ingredients: ½ cup strawberry preserves 1 T cornstarch 1T fresh lemon juice ½ c sort of clarified butter, room temp 1 c sugar 2 large eggs 1t vanilla extract ¼ t almond extract 2c all -purpose flour 1 t baking powder ½ t baking soda ½ t salt 2 cups grated and well drained cucumber ½ c chopped walnuts ½ c sliced fresh strawberries, divided Instructions: In a small saucepan, cook strawberry preserves, cornstarch, and lemon juice over medium heat until slightly thickened, about 5 minutes. Let cool completely. Preheat oven to 325°F (170°C). Spray a 9x5-inch loaf pan with baking spray and sprinkle with flour. In a bowl, beat clarified butter and sugar at medium speed until fluffy, 3 to 4 minutes, stopping to scrape sides of bowl. Add eggs, one at a time, beating well after each addition. Beat in extracts. In a medium bowl, whisk together flour, baking powder, baking soda, and salt. Gradually add flour mixture to butter mixture, beating just until combined. Stir in cucumber, walnuts, and ¼ cup (42.5 grams) sliced strawberries. Spoon half of batter into prepared pan; top with strawberry preserve mixture. Add remaining batter, and top with remaining ¼ cup (42.5 grams) strawberry slices. Bake until a wooden pick inserted in center comes out clean, 1 hour to 1 hour and 15 minutes. Let cool in pan for 10 minutes. Remove from pan and let cool completely on a wire rack. Wrap and store at room temperature for up to 1 week. Photo Credit: Joy Johnson (1,2,3,4)

< Back Tomatoes: What to do Now for Luscious Tomatoes This Summer Tomatoes are one of the most home-grown crop; probably because there is nothing like that big bite or slice of that juicy, delicious red ball. But many enthusiastic home gardeners find themselves frustrated or disappointed in their tomato crop. This article explains gardening practices that you can adopt to increase the chances of producing happy, healthy tomato plants in your yard. Michelle Scullard, Dakota County Master Gardener Many people eagerly await that first bite of homegrown tomatoes every summer. And that first succulent bite is achieved by the work you do now, early in the summer. First, it is not too late to plant tomatoes, but at this point, you will need to purchase plants if you did not start your own. Whether you choose an heirloom or a modern variety (often bred to decrease susceptibility to disease and other unfavorable traits) is a personal preference. One approach to choosing might be to get a variety you have grown before and a variety new to you. Some other characteristics you may want to consider relate to the disease resistance of the tomato plant. Plants marked with “F, FF, FFF” are resistant to fusarium diseases, while a “V” indicates resistance to Verticillium Wilt. A plant marked with “VF” is resistant to fusarium and verticillium wilts. A plant labeled with “EB” is resistant to Early Blight. If you choose a tomato that does not indicate that it has been developed with resistance to different tomato diseases, you’ll want to implement some good, basic gardening practices to decrease the risk of losing your tomato crop. Choose a tomato with a sturdy stem that is at least a pencil width. Make sure there are no spotted leaves as that may be an indicator of disease. Leaves should be spaced closely together. There are two main types of tomatoes; determinate and indeterminate. Determinate tomatoes are bushy and generally do not need pruning, staking, or trellising. The top, also called terminal point, ends with flowers and fruit. They grow to about 24 – 30 inches tall and produce fruits within a 4 to 6-week period. They may be best for container grown tomatoes. Most tomato plants are Indeterminate and they are vining. They do need support to keep their leaves and tomatoes off the ground, allow for air flow, and reduce the risk of diseases. The terminal point keeps growing as the plant grows. Tomatoes grow along the branches, and they will produce fruit until it gets too cold. Stake or trellis plants immediately when you plant them. Good tomato gardening practices start with ensuring good soil. You want rich loamy soil that drains well. If you don’t know what kind of soil, you can do a soil test from the University of Minnesota and add amendments such as fertilizer or other missing nutrients. The next critical step is to not plant your tomatoes in the same place every year. You need to rotate them to different areas in your garden, if at all possible. This helps decrease the threat of diseases that remain in the soil. It is recommended to wait three to four years before planting tomatoes again in that spot. Make sure you space your tomatoes a sufficient distance apart. You can find that information on the seed package or the plant tag. Dig a hole deep enough to place the whole container part of the plant and remove lower leaves and branches so they aren’t touching the soil. If you have a slightly crooked plant, you can actually dig the hole even deeper so the above ground part is the straight part. The tomato will actually grow roots from the stem that is underground. Consistent watering is critical to prevent “blossom end rot” (where the tomato has a black bottom), as is an adequate amount of calcium. You can find products in the store that you may want to periodically add throughout the season. When you water your tomatoes, make sure to water at the base of the plant and not overhead. This reduces disease risk on the leaves and prevents water splashing from the soil onto the plant, which is another source of tomato diseases. You will want to water deeply to help promote deep rooted plants. Generally, one inch a week is recommended but you may need to water more frequently if it is very hot and dry, or your tomato is in a container. Sandy soils will require more frequent watering, too. Despite your best efforts, you may still find diseases impacting your tomato plants and your tomatoes. Early blight, tomato viruses, bacterial spot, and late blight are some of the diseases that plague many Minnesota tomato growers due to Minnesota’s climate. To learn more about each of these diseases and how you can recognize them on your tomato plants, you can learn more here: Tomato Diseases . In addition to tomato diseases, you will need to watch for insects that may impact your tomato harvest. Insects to be aware of include: cutworms, flea beetles, Colorado potato beetle, aphids, sap beetles, and tomato hornworms (for more information, start here: Insects and Tomato Plants ) Finally, some common problems you may experience and may have little ability to prevent are: blossom end rot, growth cracks (fruit grows too quickly), catfacing (many causes), leaf roll, sunscald (tomato fruit gets too much sun), and yellow shoulders (top never ripens). You can find more information on these disorders here: Tomato disorders Tomatoes are not hard to grow but do require some specific gardening practices to ensure you can get a lot of fruit that are healthy and tasty. And most gardeners will agree that they are worth all the effort! Reference: University of Minnesota Extension Gardening Growing Tomatoes in Home Gardens Photo credits: UMN Extension (1-5), University of Wisconsin Madison Extension (6)

< Back Kentucky Wisteria (Wisteria frutescens): Romance in the air Jim Lakin MD, Master Gardener A warm summer night and the fragrance of wisteria is in the air. Okay, I admit to being a bit of a romantic, but this gorgeous native perennial invites images of lost gentility . . . even if it never really happened. Learn why and how to grow this lovely climbing vine in your garden in this article. Wisteria frutescens or Amerious native perennial invites images of lost gentility . . . even if it never really happened. can wisteria is a woody, deciduous, climbing vine native to the wet forests and stream banks of the southeastern United States with a growing range stretching from the states of Virginia to East Texas extending southeast through Florida and north to New York and the Central Midwest extending into southern Minnesota . Fragrant, pea-like, lilac-purple or blue flowers will develop in April-May after the leaves emerge. Sometimes some additional blooming will develop in the summer. Although the flowers are usually blueish, some cultivars will produce white or dark burgundy blooms, or even have hints of yellow or green. If you are going to give American wisteria a go, you should of course provide some fairly sturdy trellising as the plant can grow as tall as 15 to 40 feet and 4 to 8 feet wide. Wisteria likes full sun (6 + hours per day) but will soldier along in part shade (2-6 hours of direct sunlight). Blooming might be a problem if it is overly shaded. It will do well in either clay or loam but good drainage of moist, occasionally wet soil is important. Wisteria also likes acid soil with pH tending toward 6.0 which is why it does well on a moist forest border. It acts as a host for larval forms of several butterflies and functions as an important nectar source for both bees and butterflies. American wisteria is relatively resistant to most pests, although honey fungus can be a problem as are a number of chewing insects. Deer and rabbits don’t usually consider wisteria as their first choice on the menu. Flowering usually occurs in the second or third year although not always, so be patient! Failure to bloom may be due to too much shade as we said, so choose your site well. Wisteria frutescens does not like to be transplanted. Frost damage or over fertilization may sometimes be the causes of non-flowering. A judicious application of 10-10-10 in the spring usually suffices. Also, since it is hardy only to Zone 5A, it might be prudent to mulch heavily in the fall in a southern Minnesota garden. Some nice cultivars to look for in your local nursery include “Alba” and “Nivea” with white flowers, “Magnifica” and “Swantly Purple”. “Amethyst Falls” produces a lovely, lightly fragrant lavender-purple bloom. Pruning should usually be done in the spring after flowering to control the size and spread of the plant. American wisteria does well as an accent to native or pollinator gardens especially on slopes, banks or rock walls. Regardless of placement it will add a colorful, fragrant and, perhaps romantic element to your landscape. Photo Credit: USDA (1), Bev Wagar, NC State Extension (2)

< Back Wander the Winter Wonderlands of Minnesota Mary Gadek, Dakota County Master Gardener As we embark into our Minnesota winter, let’s wander into the many winter wonderlands in our state. The landscape is transforming into a quiet, snow-covered land, where nature’s beauty takes on a serene and magical existence. Many Minnesota outdoor and indoor garden sights are offered in the winter with opportunities of quiet meditation, reconnection with nature and new interaction with our environment. Let’s explore the winter garden possibilities available to us in Minnesota in this article. GO OUTSIDE Many options exist in Minnesota to embrace the magic of the landscape, dusted with the delicate powder of snow and its meditative stillness. Also, some places allow for more active winter interaction, like cross country skiing, snow shoeing, ice skating or snowmobiling. Here are some suggestions: Minnesota Landscape Arboretum: Trails for driving, walking, snow showing, cross country skiing. https://arb.umn.edu/winter St. Paul Winter Farmers’ Market: Featuring many Minnesota grown or made products available during the off-season, such as meats, cheese, eggs, honey, bakery goods, and milk. https://minnesotagrown.com/member/st-paul-downtown-farmers-winter-mkt/ Walker Sculpture Garden: View the larger-than-life sculptures, including the infamous Spoonbridge and Cherry. https://walkerart.org/visit/garden/ Franconia Sculpture Park : Acres of outdoor sculptures on hand, with a Midwinter Celebration, held in January. https://www.franconia.org/about/ Gold Medal Park: Located in the heart of Minneapolis, along the Mis sissippi River, with spectacular views of Downtown. https://www.nps.gov/miss/planyourvisit/goldmedal.htm Rice Park: In the middle of downtown St. Paul, it hosts the St. Paul Winter Carnival. https://www.familyfuntwincities.com/rice-park-st-paul/ The trails of our many Dakota County-area parks, including: Lebanon Hills Regional Park, Whitetail Woods Regional Park, Mississipi River Greenway, Spring Lake Park Reserve. WARM UP INSIDE Como Conservatory : A plethora of indoor gardens, including the sunken garden, bonzai collection, fern room and orchid house. https://comozooconservatory.org/category/como-gardens/ Minneapolis Farmers’ Market : At a few different locations, these farmers’ markets can fill your hunger for Minnesota grown produce and products. https://farmersmarketsofmpls.org/winter-markets/ Conservatory and Botanical Collection at UMN College of Biological Sciences Conservatory : Come see this unique and extensive, indoor plant collection. https://cbs.umn.edu/conservatory Edinborough Park: Come play at the indoor playground and ice rink in Edina, surrounded by indoor gardens, ponds and water falls. https://mngardens.horticulture.umn.edu/edinborough-park These are just some of many winter wonderland choices in Minnesota. Get out there this winter, and sample its wonder! When you come back inside, your cheeks rosy from the cold and your mind filled with peaceful images, you realize that winter isn’t something to endure—it’s something to embrace. Other sources of fun: https://mngardens.horticulture.umn.edu/view-by-season Photo Credit: Mary Gadek (1,2,3)

< Back Give Your Orchid a Vacation Paul Wood, Dakota County Master Gardener Orchids are like school children. They have been cooped up in your house all winter. They have treated you well, stayed healthy, and maybe even treated you to blooms; for that they deserve something special: a vacation! It is easy; you don’t need a travel agent, an airline reservation or even a hotel room: just set them outside. Read this article by avid orchid grower, Paul Wood, to learn how to safely grow your orchids outside in the summer. The orchids in your house are not native to Minnesota so being outside is like a foreign country to them; they need some orientation and acclimation to feel comfortable and really enjoy their vacation. Prime Vacation Time Orchids like to take their vacations most any time after our night-time temperatures stay above 50 degrees. They can stay on vacation until the temperatures start dipping below 50 at night. Accommodations For the most part, when you put your orchids outside, they should be in dappled light. Putting an orchid that has been inside all winter into direct sunlight will burn its leaves. This is particularly true if you have Phalaenopsis (Phal) because they grow in the lower story of the forests so they don’t get a lot of light even in nature. The dappled light comes in many forms. My orchids spend the summer on the back deck in the shade of a birch tree and do quite well. There are pot clips you can buy for ceramic pots that allow you to hang the orchids right in the tree. If you don’t have a shady spot, you can use shade cloth to protect your orchids. The level of shade depends on the orchid, but for Phals it is 70-80%. You can build a supporting structure for the cloth, but if you have a pergola you are ready to go. Some orchids like Cattleyas, Dendrobiums or Oncidiums prefer more light than a Phal, but that doesn’t mean direct sun light. Bright diffused light is called for. Be sure to harden them off before leaving them in the brighter light. Spa Treatments Orchids, like any other plant, are subject to pests and disease. While your orchids are outside, it is a great time to give them “spa treatments” to keep them healthy. You won’t find orchid specific pesticides, but any pesticide that can be used on tropical plants will be OK for your orchids. Systemic pesticides are best for sucking pests. Safari ®, Malathion ® or Imidacloprid work extremely well. Mix them with water and soak the roots. Both Safari and the chemical Imidacloprid are neonicotinoids, but there are no pollinators visiting your orchids so from that perspective they are safe to use. Horticultural oil can be used for scale as well. Fungicides are best applied when the orchids enter the spa. The copper-based fungicides or a fungicide with chlorothalonil as the active ingredient work well. Remember that fungicides are preventative, not curative, so prevention is key. There are more natural solutions to pest control than what I noted above. These are best used when the orchids return from vacation. Libation Station What is a vacation without some libation! When your orchids are outside you need to continue to water and fertilize them, but you also need to consider the weather conditions. If it has been hot and dry, they might need to be watered more than once a week, particularly if they are in a small pot. Conversely, if it has been hot and humid or very rainy, you might want to hold back on the watering. Under hot conditions, they enjoy a misting to cool their leaves. Orchids prefer their libations straight up, they don’t like mixes such as chlorine or pH increasers (e.g. city water). Watering from your rain barrel or using RO water will go a long way towards keep your orchids healthy. In summary, don’t be afraid to move your orchids outside in the summer; just be sure to keep them shaded and out of direct sun. While on vacation they still need to be watered and fertilized, just be cognizant of the local weather conditions. While they are outside, use this time to treat them with pesticides to keep them healthy and pest free. Treating them also lessens the chance of bringing pests indoors when the vacation time must come to an end and they return to their job of being a flowering indoor plant for your enjoyment. !!!!!! WARNNG- Orchids can become addicting!!!!! References: How To Care For Orchids Outdoors - Everyday Orchids Heat Stress ( aos.org ) Outdoor Orchid Care - American Orchid Society ( aos.org ) Photo credits: www.justaddiceorchids.com (All Creative Commons) (1), Paul Wood (2,3)

< Back The Minnesota Lawn Guide: Attaining and Maintaining the Lawn You Want Gail Maifeld The Minnesota Lawn Guide, by Melinda Myers will give you tips on growing the perfect lawn in Minnesota. Whether establishing a new lawn, restoring an existing one or fixing spots, this easy to read book will help answer all your questions. Fall is cleanup time for the garden. The drought of the 2021growing season has been a challenge for all gardening. Watering restrictions presented challenges for lawn care. Melinda Myer’s book, The Minnesota Lawn Guide, provides fall procedures that would be helpful to revitalize a lawn. Written in plain language the author addresses variable weather, unpredictable rain, and long harsh winter effects on grass. Good soil is the foundation for a healthy lawn so a soil test is recommended. Individual chapters about watering, fertilizing, mowing, turf varieties, and the best seeds are included. THE MINNESOTA LAWN GUIDE is a necessary reference for the new lawn process, lawn restoration, and spot restorations. Melinda Myers is a well-known PBS presenter, has 13 years experience at the University of Wisconsin Extension Service, and is editor/columnist for Birds & Bloom Magazine.

< Back Our State Insect: The Monarch Butterfly Lisa Olson, Master Gardener The days are getting shorter, the leaves are changing, some days there is a noticeable chill in the air. Time to head south before the snow flies. I’m not talking about Minnesotans who’ve experienced one too many frigid winters, but rather the Minnesota state butterfly, the monarch. Click here to read fascinating facts about the monarch butterfly, renowned for its extraordinary migration. Since March 31, 2000, the monarch butterfly has represented Minnesota as the state butterfly after being promoted by a fourth-grade class at Anderson Elementary School in Mahtomedi, Minnesota. It was a popular choice. Elementary schools in six other states convinced their state legislatures to adopt the monarch as their state butterfly as well. Though monarch butterflies can be seen all over North America, from Canada to Mexico, the eastern monarch butterfly numbers have dropped drastically over the last few decades. In fact, on July 21, 2022, the International Union for Conservation of Nature declared the monarch as endangered, threatened by habitat destruction and climate change. However, the monarch is not protected by the Endangered Species Act (ESA) because the US Fish and Wildlife Service has not yet determined the monarch belongs on the protected list. Most creatures on the ESA list have very localized habitats, whereas the monarch is widespread, making it difficult to enforce protection of its habitat. To understand the range of the monarch, it is important to look at the life cycle of the insect. The Latin name for the monarch butterfly is Danaus plexippus, which literally means sleepy transformation. The monarch undergoes a complete metamorphosis from egg, to larva (caterpillar), then pupa (chrysalis), and finally the adult stage. The egg and caterpillar stages occur only on species of milkweed (genus Asclepias), whereas adults survive on the nectar from a variety of flowering plants. In a single year, there will be 4 to 5 generations of monarchs. A butterfly lays one egg at a time, roughly the size of a pinhead or pencil tip. But throughout their lifespan a female lays an average of 300-500 eggs specifically on milkweed plants so that the caterpillars will emerge directly on their only source of food. During the caterpillar stage, they simply eat, rest, and grow until they form into a chrysalis from which they finally emerge as a butterfly to begin the cycle all over again. The monarch life cycle The transformation from egg to adult takes about a month, and then they live only two to six weeks as adults, where their main focus is laying eggs to build their population throughout the summer. That is until the last generation of the season. This super generation is the group of butterflies that make the long journey all the way to Mexico along with tens of millions of other monarchs. This generation may live up to eight or nine months! Tags or modern sensors have been placed on monarchs to gather data about the amazing journey that takes them from as far north as Canada thousands of miles to their winter home in Mexico, or in California in the case of the western Monarchs. Upon reaching their destination west of Mexico City, they flutter around in the warmth of the sun by day, and at night they huddle together covering entire trees. In the spring, they make the journey north laying eggs on milkweed plants along the way. To experience for yourself the magical sight of millions of monarchs wintering in Mexico, consider traveling with the Minnesota Landscape Arboretum’s curator of endangered plants on Kingdom of Monarchs | Minnesota Landscape Arboretum trip to Mexico in February 2024. In the days ahead, be on the lookout for the last stragglers beginning their long journey south to Mexico. The easiest way to tell the difference between a male and female monarch, is to note the presence of black dots on each of the male’s wings or the lack of dots on the female. Ponder the long road ahead for these magnificent creatures and perhaps how you can help them thrive in the future. Consider creating or enhancing a pollinator habitat in your yard or community. Identify a sunny location, prepare the site for sowing native seeds or installing native plants, plant, and continue to conduct maintenance to provide a healthy habitat. Check out Minnesota Zoo for a list of Minnesota native pollinator favorites. For additional resources for monarch fans of all ages, visit monarch joint venture . Resources for this article: https://ece.engin.umich.edu/stories/tracking-monarch-butterfly-migration-with-the-worlds-smallest-computer https://www.worldatlas.com/articles/us-state-butterflies-and-insects.html#:~:text=The%20Monarch%20Butterfly%20is%20an,the%20friendliness%20of%20the%20states . https://www.iucn.org/press-release/202207/migratory-monarch-butterfly-now-endangered-iucn-red-list#:~:text=Gland%2C%20Switzerland%2C%2021%20July%202022,habitat%20destruction%20and%20climate%20change . https://www.fws.gov/press-release/2020-12/endangered-species-act-listing-monarch-butterfly-warranted-precluded https://www.worldwildlife.org/species/monarch-butterfly#:~:text=The%20monarch%20butterfly%20is%20known,ability%20to%20hibernate%20and%20metamorphize . https://www.revisor.mn.gov/laws/2000/0/306/ https://www.dnr.state.mn.us/insects/monarchbutterfly.html https://arb.umn.edu/kingdom-monarchs https://mnzoo.org/conservation/act-wildlife/plant-pollinators/ https://www.fs.usda.gov/wildflowers/pollinators/Monarch_Butterfly/migration/index.shtml https://monarchjointventure.org/about-us/partners Photo credits: Lisa Olson, Master Gardener (1), Monarch Joint Venture https://monarchjointventure.org/monarch-biology/life-cycle (2), Monarch Joint Venture https://monarchjointventure.org/monarch-biology/life-cycle (3), https://monarchjointventure.org/monarch-biology/vital-statistics-and-measuring (4)

< Back 2 Easy Ways to Savor Spring Produce Joy Johnson, Master Gardener If you subscribe to the notion and practice of seasonal eating, as I do, then you already know: nothing in the world tastes as good as freshly picked asparagus. There is no replicating the bold bite of a turnip just plucked from the dirt. Spring is a wonderful time to eat, and its abundant leaves, stalks, bulbs and shoots in peak season and at their most flavorful require very little fussing in the kitchen. It’s early spring and you may have some early spring veggies coming up in your garden; or, like me, you may still be in the “hopeful” stage. If you are blessed to have an asparagus patch or if you froze some turnips or have some in cold storage, it’s time to enjoy them! If you don’t have either of these on hand, they are readily available this time of year in your local grocery store, probably at a reasonable price because they are in season. These recipes, if you can even call them that, are very simple and quick. I hope you enjoy the fresh new flavors as much as I did when prepping for this article. Hakurei Turnips Make a salty-sweet glaze: Trim and cut turnips to bit size, then boil in salted water until just tender, 5 minutes. Drain and return to pot along with a couple tablespoons each honey and butter, and 1 tablespoon each of miso and vinegar. I used one pack of red miso soup mixed with 1 tablespoon water. Cook until the glaze thickens enough to coat the turnips. Season with salt and pepper. Asparagus Blanch trimmed asparagus in salted simmering water until just tender, about 6 minutes. Toss with a grainy mustard vinagrette (i.e. mix 1 tablespoon brown mustard into 1/3 cup of whatever bottled vinagrette dressing you have on hand). Force a peeled hard boiled egg through a sieve or potato ricer to garnish. Photo Credit: Joy Johnson (1,2,3,4)

< Back Tulip Tree (Liriodendron tulipifera): A Speedy Giant Jim Lakin MD, Master Gardener You may not be familiar with the Tulip tree, June’s native tree of the month, because until now our climate was not suitable. Although climate change is an existential threat to our planet, or at least to our species, it has made growing tulip trees a possibility in southern Minnesota and the Twin Cities. Aside from its intriguing name, the Tulip tree has lots attributes that make it an attractive option for your garden. Read this article to learn more. Although climate change is an existential threat to our planet, or at least to our species, it has made growing tulip trees a possibility in southern Minnesota and the Twin Cities (USDA Zone 5). Although native to the Eastern Midwest, it has been planted widely in more western regions and has become a candidate for Minnesota. It is hardy through zone 5 but with a bit of pampering will do all right in Zone 4. Why pamper? Because it is a gorgeous shade tree. In zone 5 or warmer it grows rapidly to 70 to 130 feet with a width of 30 to 60 feet. It then can live on for centuries. In Zone 4 it is a shorter plant but that may not be a drawback. The tulip tree rewards with spring-time flowers that resemble tulips. tulip tree flower It provides generous shade in summer with its smooth green broadly lobed leaves. In fall the tulip tree will put on quite a show with shimmering gold and yellow colors. The native tulip tree is quite pollinator friendly, attracting bees and hummingbirds when flowering. Later in the season, bobwhites, rabbits and squirrels feed on the seeds. Tulip trees are also known as ‘yellow poplar,’ and ‘tulip poplar’ although they are members of the magnolia family, Magnoliaceae. The tulip tree has quite a history. They were popular with early settlers for railroad ties and fence posts because of the strength of the wood. Native Americans as well as Daniel Boone used the wood to construct canoes. tulip tree If you want to give the tulip tree a go, select an area with full sun (at least 6 hours per day). Also, you’ll want a moist soil with good drainage. It is quite pH tolerant doing well in either acid or alkaline conditions although you would do well to amend the soil with quite a bit of compost when planting. It’s okay to plant from spring to late fall. You will want to mulch the roots quite a bit as they are shallow. Also, a growing tree needs lots of water, so keep an eye on it throughout the summer. As these guys get tall quickly, you will want to be careful where you site your specimen. After the first season, you should see rapid growth of a relatively maintenance-free shade tree for you and you family to enjoy for generations. Photo credits: Wikimedia Commons (1,2)

< Back Beware of Periwinkle Janelle Rietz-Kamenar, Dakota County Master Gardener Periwinkle is a semi-evergreen ground cover plant that was once touted as a great ground cover. It grows very well in most conditions and have pretty green leaves and purple flowers. But now Periwinkle is on some invasive species lists. If you have Periwinkle in your yard, you probably know why. Read this article to understand the problems Periwinkle can pose in your yard and how you can manage them. Periwinkle, also known as Vinca Minor, Creeping Myrtle, Running Myrtle, and Lesser Periwinkle, is a semi-evergreen ground cover plant that was once touted as a great ground cover. But now Periwinkle is listed on the Farm Services Agency USDA Invasive plant list and the invasive species-extension.org list. I was one of those individuals who bought a 3-inch pot of periwinkle and planted it in my wooded backyard. And yes, it grew very well and looked beautiful with green vegetation and purple flowers. It contained the weeds, therefore, maintenance free. What more could I ask for? And then . . . I noticed it crowded out my lilies of the valley, hostas, and ferns. I have since battled the plant trying to contain it within a small area. This article will introduce you to Periwinkle and discuss how to manage it. Common periwinkle was first introduced to the U.S. from Europe in the 1700s as an ornamental. The green stems are slender but woody in appearance. The green leaves are glossy and about an inch long. Some of the varieties of periwinkle have variegated leaf color. The flowers are generally purple to blue. The flowers resemble a phlox flower with 5 lobes and it blooms in May and June. It grows in sun, part-shade, and shady areas from dry to most soil. In other words, it adapts well to many surroundings especially shady areas. It is low growing at approximately 4-8 inches in height but its vine can be as long as 6.6 feet But Periwinkle can take over wooded areas, forests, bluffs, and old homesites due to its dense matting. Because of this, Periwinkle is listed as invasive in other parts of the U.S., including Wisconsin - but not yet Minnesota. As a homeowner what can you do about the Periwinkle problem? There are several action steps you can take: Don’t buy/acquire it If you have it on your property, try and contain or eradicate it. Educate others. Now that you know it is an invasive plant elsewhere, you can tell others about it. How do you get rid of it? There are several manual ways to get rid of periwinkle: Hand pull it - but be sure to wear gloves! You will need to pull it fairly close to the ground to make sure the vines/roots don’t break off, Rake it. Raking the dense mats in large areas will get some of the vines and roots up. Dig it up. Use a shovel or pitchfork and remove excess soil from the roots. Be careful to get all the roots. Mow it or string trim it. You can mow it and then dig it up. Mowing can help contain it. Avoid rotary tillers because any root left in the soil will just grow back. Smother it with cardboard and mulch. Cut, pull up, or rake up as much of the vinca first. Then add a layer of cardboard and 3 inches of mulch on top of the cardboard to smother the plant. You may have to apply multiple times to fully eliminate. If you must use an herbicide, be aware that the plant leaves are waxy, and therefore, herbicides may not work as effectively or may need a second application. Trimming with a string trimmer, and then applying the herbicide may work better to reach the stems of the plant. Periwinkle can appear to be an attractive option if you are looking for a ground cover for tough areas. But, as this article shows, you may want to avoid this plant unless you are up for managing its massive spreading habit. Sources: https://invasive-species.extension.org/vinca-minor-common-periwinkle/ https://www.minnesotawildflowers.info/flower/periwinkle https://www.fsa.usda.gov/sites/default/files/documents/appendixe.pdf https://ask2.extension.org/kb/faq.php?id=461054 Photo credits: www.uniprot.org (all creative commons) 1, www.forestryimages.org (all creative commons) 2