Milkweed is a beneficial wildflower. After sowing the seeds in the plastic flats, you need to cover up all the flats with a transparent plastic bag or plastic cover to prevent them from becoming dry during the germination process. As the plants can be toxic; consumption of the plant protects caterp… Plant Milkweed for Monarchs Monarchs cannot survive without milkweed. Make sure to take them out before the pods burst, or else they will disperse everywhere in your garden. Monarch butterflies (Danaus plexippus) will only lay their eggs on their host plant, which is milkweed, and one other plant closely related to milkweed called smooth swallow-wort. The Myths to Bust Myth #1: Milkweed is an invasive weed. Milkweed Poisoning Average Cost. Take any soil mix that is favorable for the seed and fill it in the plastic flats. The eggs hatch approximately four days after they are laid and the newly hatched larvae begin eating. It helps in holding the moisture in the soil and for minimizing the production of any rival weeds. April 8 at 6:29 pm. Their survival is excellent if you make a cutting from a green stem that has a diameter of 1/3 inches and is obtained from a plant that is fertilized a little earlier. Here are some facts about this amazing plant: Fast growing annual Milkweed… Carpe diem! Make sure to scatter them about Â¼ to Â½ inch apart, covering them with around Â¼ inch of extra soil. $400. Common Milkweed grows well in average garden soil. It can grow to about two to three feet in height and produces clusters of star-shaped, orange, red or yellow flowers that will bloom from late spring through early summer. A Milkweed family member, another common name is Balloon Plant. Milkweed contains toxins called cardenolides which can be harmful to predators and also make monarchs distasteful. When the plants reach to a height of around 3 to 6 inches, you should transplant them outdoors. On bursting open, the pods reveal their small seeds that are fastened to silky, white colored hairs. Clear and loosen the soil in a sunny spot of the garden. (as a trial I only did two but I intend to plant a whole area of my garden with them). When the caterpillars hatch, they feed on the leaves of milkweed. (Important: There are a lot of species of Milkweed, and I’m referring to common milkweed (Asclepias syriaca).It does have toxic look-alikes, and if you’re not 100% sure on your ID, don’t eat it. Once, all the seeds are through to the germination process, take off the plastic cover from the top of the flats. Smooth out the soil till it becomes even so that the seeds can have a good contact with it. It is also drought-resistant. Make sure to properly immerse the soil in water, and let all extra water drain. The monarch’s top 4 favorite milkweed species are bolded in the list below.. Since the 1980’s, California’s monarch population has declined an estimated 97%. The name milkweed implies that the plants are weeds, but milkweeds are a diverse group of native flowers. As reported in The Monarch Newsletter, an experiment was conducted to determine the effects of transplanting, fertilizing, and light on milkweed plants. Milkweed is the only plant that our hungry caterpillars can eat, and man do they eat. These pods rupture open during the end of summer and this process ends when the fall season arrives. Make sure to keep the soil moist, but prevent the saplings from becoming extremely wet as it can result in the growth of fungus that can be hazardous for the young sprouts. Common milkweed plants grow to about 2 to 4 feet in height, with a thin, vertical growth habit. Extension in your Community > Asclepias syriaca, commonly called common milkweed, butterfly flower, silkweed, silky swallow-wort, and Virginia silkweed, is a species of flowering plant.It is in the genus Asclepias, the milkweeds.This species is native to southern Canada and of much of the conterminous eastern U.S., east of the Rocky Mountains, excluding the drier parts of the prairies. At times, this needs to be heated before extracting. There are so many amazing and fascinating things about milkweed to cover so let’s get started. If you are using a water-soluble seed fertilizer, then you should fertilize the seedlings two to three times in the growing season. In fall, adding a 3- to 4-inch-deep layer of mulch helps insulate the soil. Be forewarned, however, that you will likely end up with butterfly … The seed pods turn brown over time and are nice for adding winter interest to the garden. Please Log In or add your name and email to post the comment. They contain information regarding the equipment you would need, preparation of the beds, how to water the plants and transplant them. Most of its species developed in areas with a good exposure to sunlight, however, the A. purpurascens specie needs a little shade for its proper growth. Some insects such as monarch butterflies have evolved a resistance to the poison and can safely consume the plants. The milkweed plant provides all the nourishment the monarch needs to transform the Monarch caterpillar into the adult butterfly. The common milkweed is easy to grow, Sometimes, the plants … To water the flat from its base, you should place it either in a big flat that is filled with around two inches of water, or in a big sink. Extension is expanding its online education and resources to adapt to COVID-19 restrictions. While not required, this helps keep the ground from freezing and thawing and disrupting the roots. These seeds are distributed easily when a wind blows. The best yield is from plants growing in clay soils. Average Cost. Mix the seeds with ¼ cup perlite, ¼ cup sand and 2 teaspoons hot water in a plastic bag. > Leave your milkweed for monarch caterpillars to munch, Claire LaCanne, Agricultural Extension Educator for Rice and Steele Counties. For the most part though, monarch caterpillars can eat only milkweed, which is their obligate host. The survival of Monarchs depends greatly on the milkweed plant. Please use the zip-code search function available in the Milkweed Market Shop to determine the plants we are supplying to your area. Loosen the soil and rake it so it is even. You may feel uncomfortable leaving weeds in your yard or in the margins of your field. Although a few milkweed species can colonize disturbed areas, milkweeds are not listed as noxious weeds in any state or at the federal level. Steele. Milkweed Tussock Moth Caterpillar, Euchaetes egle These fuzzy little guys are occasionally mistaken for Monarch caterpillars, especially when very small. The long, oblong leaves are light green and grow to about 8 inches long. Many have adapted to different regions of the country and a wide range of climates and terrains, from deserts and rocky areas to marshes and open prairies. County Agriculture Educator in This flower loves disturbed soil, which is why it grows so happily in plowed fields. If you are beginner gardener, then it is a wise idea to talk to the county extension representative in your area to find out whether or not the soil in your garden or backyard needs any enhancement with the help of soil additive prior to planting the milkweed seeds. Description Desert Milkweed, Asclepias subulata, has slender gray-green stems that grow vertically to 4 feet from a woody base.The plant’s spread can reach 2 feet or more. Cuttings help in growing plants in a short time, helping you avoid the problems faced while planting them from seeds. Common milkweed (Asclepias syriaca) is a native herbaceous perennial whose main virtue is its appeal to butterfliesespecially the monarch, which deposits its eggs on the milkweed. But these plants are rapidly disappearing, due to the loss of habitat stemming from land development and the widespread spraying of weed killer on the fields where they live. Thinning the sprouts can help in reducing the dampness. It is about one to two feet tall, with glossy, lanceolate leaves that are arranged spirally up the length of the stem. For reducing clumping, avoid working on wet soil. Butterfly milkweed (Asclepia tuberosa) is a sun loving perennial growing plant that is highly attractive to bees and a number of different butterfuly species. together in large numbers while young. We see five generations of monarchs in Minnesota. You will find these plants in abundance on the roadsides of Eastern America where they grow as huge wildflowers. Milkweed seeds were planted in 4-inch pots, 4-5 seeds per pot, in early Spring. Its leaves look like a four-sided figure, are broad and of a light shade of green. Therefore, I encourage you to consider leaving these plants in your yard or on your land so that you can provide this vital food source to our monarch butterflies. Server responsed at: 01/01/2021 12:02 a.m. All texts are contributed by our excellent writers, 3 Temperature and watering before germination starts. However, this depends on the specie of milkweed plant seeds you are using, so it is essential to read the information given on the packetâs back. Tropical Milkweed (Asclepias curassavica) Tropical milkweed probably wins the contest for the … There are several dozen species of this wildflower native to North America, so no matter where you live, there is at least one milkweed species naturally found in your area. Milkweed Seeds will benefit from a 30 day period of cold moist stratification, allowing you a much higher germination rate. Native to South Africa, this plant is an invasive in tropical climates, but in my zone 6-7 area, winter cold keep it in check. Milkweed plants survive the winter in cold regions by going dormant. It also works well for the seeds that need vernalization. ; Swamp Milkweed, as its name implies, will do best in a moist environment, making it great for wet meadows or rain gardens. Milkweeds are one of our most stunning and attractive native wildflowers. Humans can eat milkweed, but its toxicity depends on its species, age, how it is prepared and how much is eaten. Boasting fantastically bold colors such as luscious orange and creamy-lipstick pink, milkweeds are garden gems that no landscape should be without. However, if you are using a granulated time-release fertilizer, then you should fertilize then once during the growing period. Purchase a large bag each of peat and potting soil, as many plastic seeding trays as you'd like, and milkweed seeds at a gardening store. Plant butterfly milkweed where it can have room to grow and make sure it's well drained. What is Milkweed? Commonly found species of the milkweed plant grow really well in bright sunlight and a properly drained soil. Your native seeds are a good start, but if you want milkweed plants that will grow to maturity this season, I would get some tropical milkweed plants too. Butterfly weed is native to the prairies of the Midwestern United States. Common milkweed plants grow best in a well-drained soil and in full sun. Most people seem to know that monarch butterflies are toxic to predators (which is why some other butterfly species mimic monarchs), but do you know how they become toxic? Make sure there are no monarch eggs on the foliage before you prune. They are thin and give flowers in clusters during the summer season. So, monarchs in Generation 1 are the offspring of the ones that overwintered, Generation 2 monarchs are the grandchildren of the overwintering butterflies, and Generations 3 and 4 are the great- and the great great- grandchildren of the butterflies which overwintered. Monarch’s Favorite Milkweed. We only ship plants to the ecoregion from which their seeds originated and are contracting with native plant nurseries to increase our impact nationwide. It rarely granulates. Most of the gardeners wrap the seed in small packets fashioned using paper towels, and place them in lukewarm water for a day before planting them. Make sure that the soil is moist at the bottom when the seedlings begin appearing. These plants are three feet tall. The saplings should be placed at a distance of around 6 to 24 inches from each other. They are difficult to contain, so you will experience some difficulty in preventing them from spreading and creating colonies. Some species grow exclusively in specific regions while others will thrive in jus… Hairy Balls in full glory. Growing milkweed supplies larvae of the Monarch with food and shelter, providing caterpillars food and a resting place before they leave the caterpillar stage and become butterflies. to grow and develop, and monarch butterflies need milkweed to lay their eggs. Prior to doing that, make sure to get them accustomed to the conditions outdoors by keeping the seedlings under a sheltered place in the daytime, and make sure to bring them inside during the night. How to Grow Milkweed Plants from Cuttings. These butterflies migrate to Minnesota during the spring and proceed to lay eggs on any milkweed plant they can find, the eggs that these butterflies lay hatch into what we call "Generation 1". More than 100 species of this herbaceous perennial are native to the U.S. and Canada. Milkweed is a central feature in my garden, and I want to make sure it has everything it needs to come back in the spring. Articles The stems and leav… Though a few parts of the Asclepias syriaca are used for making medicines and meals, this plant is still considered as a poisonous plant as it has harmful leaves. They’re growing great and are about 2ft tall BUT the stems are basically leaning so much they’re growing into other plants. In order to achieve that, you need to either winter-sow the seed (at least by March 1 for most zones) or simulate the ‘winter’ by utilizing the refrigerator. However, milkweed is so much more than just a butterfly plant. To make sure your plants grow well, use a lighter soil than the one containing weighty clay. This tip helps in enhancing the germinate speed of the seeds. Mix the fertilizer with water according to package recommendations for the size of your planting area. The videos in the following links can help you become aware of all the steps you need to follow for properly planting milkweed plants. The winner is the Asclepias incarnata, common name: Swamp milkweed Monarchs favor a variety of milkweeds, and in fact, with variety they’ll lay more eggs. With shifting land management practices, we have lost much milkweed from the landscape. Monarch caterpillars need milkweed plants (Asclepias sp.) Now, softly spray water on its surface to moisten the extra soil you just added. The pink colored flower bunches bloom at the top of the milkweed plantâs stem, looking like a globe. They rarely stop even to rest. A sports lover who thinks health and family comes before all other things. To make sure the plant has a proper seedling establishment and germination, you need to prepare an even, weeded and clump-free soil bed. Prune back the milkweed plants by half when they are approximately 6 inches tall to encourage full and bushy growth. Milkweed is a hardy plant. Well, this is another reason that milkweed is so important to monarchs. But, maybe you would find it easier if you knew that there are so-called weeds which are the main food source for some beneficial insects. The purpose of this stage of their life is to consume as much as they can, because they get the majority of their lifelong protein that they’ll use for the rest of their larval stage and their adult lives, too. For doing this, you need to cut the plantâs stems underwater and coat its bottom with a powerful rooting hormone. We call these larvae caterpillars, and these very hungry caterpillars keep eating almost nonstop for nine to fourteen days, until they are ready to make their chrysalis. The purpose of this stage of their life is to consume as much as they can, because they get the majority of their lifelong protein that they’ll use for the rest of their larval stage and their adult lives, too. Steele > The first butterflies we typically see in the spring are actually the final generation from the previous year, which overwintered in Mexico. Fertilizing these plants isnât that important as they can bear poor quality soils as well. The most common kind of these plants normally grows from the zone 3 till zone 9. The milkweed flower (Asclepias syriaca) and its cousin butterfly weed (Asclepias tuberosa) are an integral part of the butterfly garden, a source of nectar for butterflies and hummingbirds. Water it till you see moisture appearing on the surface of the soil. Soil: There is a Milkweed variety for every landscape. Milkweed is one of my favorite plants! This means that it is to our benefit to leave these plants to their own devices. The many varieties of milkweed plants bloom with both subtle and bright colors, and the whole milkweed plant is vital to the life cycle of Monarch butterflies as their sole host plant, and … Now, you need to plant the seed by spreading them out on the soaked up soil. It is a drought resistant plant, but the A. sullivantii and the A. incarnate species grow best in a saturated soil. Milkweed is a much overlooked plant in the gardening world. Make sure to frequently water the plants that have been transplanted recently, and put in mulch around them as soon as you plant them. In spring, pull back the mulch to give space to the new growth. Generation 4 butterflies then migrate south. Don’t worry too much about the quality of the soil. You can use plastic flats for setting up the seeds. Make sure to avoid bringing pets and children in the yard. However, when given a choice, their favorite milkweed by far, is the Asclepias incarnata, common name: Swamp milkweed. Extension > Another option is to stratify the seeds in your refrigerator. Light: Young Milkweed plants need plenty of diffuse light as they grow.Plant in full sun locations. Cold-treating your seeds causes better germination results in plants that are native to temperate climates, such as most types of milkweed. To make sure that the monarchs do not vanish completely as they help provide nectar for numerous kinds of butterflies and bees, it is important to plant the milkweed plant in a sufficient quantity. Please plant Milkweed plants, in all their various forms, are the exclusive foodplant of Monarch butterflies, so gardeners can play an important role in monarch ecology, and hopefully their recovery. However, slowly decrease the number of times you water the seeds when the seedlings start establishing. Milkweed plants contain both galitoxin and cardiac glycosides in all parts of the plant, although they concentrate in the sap. Plant Milkweed The good news is that planting milkweed is one of the easiest ways that each of us can make a difference for monarchs. Ron Jones says. County Agriculture Educator > It has flat clusters of bright orange blossoms and blooms from early summer to first frost in most areas. To make sure that the monarchs do not vanish completely as they help provide nectar for numerous kinds of butterflies and bees, it is important to plant the milkweed plant in a sufficient quantity. I planted two milkweed plants fairly close to each other and near other butterfly-loving plants. More info: Tropical Milkweed for Monarchs. Light watering for 7 to 10 days, if possible in the morning, will be quite adequate for the seedlings. Make sure to keep the soil moist till the germination process. Spread the seeds over the soil and cover them with 1/8 inch of soil. From 493 quotes ranging from $800 - $200. I’m in new location..have to start milkweed seeds from scratch. If there is already some vegetation in that area, you should remove it with the help of a tiller. I love milkweed so much that a friend posted this meme on my timeline. Female monarchs lay one egg at a time, which is about the size of the tip of a pencil, typically on the underside of a leaf. The population of the milkweed plant has decreased greatly over the years, mainly due to the poor management of land. Place the stem in moist sand, potting soil or vermiculite. You can transplant them after six to ten weeks. Moreover, donât eat or use them on your body and educate others regarding their drawbacks as well. One female will lay somewhere between 300-500 eggs over her reproductive lifetime. Most of the seeds germinate during 7-10 days if the temperature of the plastic flats is kept at 75ËF. Their little caterpillars eat nothing, but the milkweed plants, and their butterflies use the plants for laying eggs. According to Plant Taxonomy, the milkweed plant is classified as âAsclepias syriaca.â They are herbaceous perennials. Hence, never consume it before consulting it with an expert. It is also poisonous. Milkweed (Asclepias spp.) My friends know I’m obsessed. It may have “weed” in the name, but there are over 100 species of milkweed … The first method is to plant milkweed seeds directly in the garden in the fall. With more than 100 species of milkweeds (Asclepias) native to North America, we could fill our gardens with nothing but these fascinating plants.Only a few species are widely available, though, including bright orange butterfly weed (A. tuberosa) and rose-pink swamp milkweed (A. incarnata).Recently, common milkweed (A. syriaca) has soared in popularity as gardeners become … Leaves 2 inches long by 1/8-inch-wide appear on new growth but soon drop. Now, put the flat on a luminous window, a greenhouse, or under special grow lights. … Ingestion of milkweed should be treated as an urgent matter. The seed pods of the plant come after the flowers and look like mini cucumbers. Almost always, more milkweed plants means more Monarch butterflies. Monarchs become toxic to predators by storing toxins from the milkweed plants that they ate during their caterpillar stage. Milkweed can handle a little shade, but definitely prefers the sun. is a family of perennial flowering plants that are native to Africa and North and South America.They are called milkweed because the plants contain latex, a milky white fluid. Milkweeds (Asclepias) get their name from the sticky white sap that oozes from the leaves when they are damaged. When & Where To Plant Milkweed. One tip to help with ID is that Monarch eggs are laid singly, one per shoot or plant, while Tussock Moths are gregarious caterpillars, living (and eating!) Luckily, there isn’t all that much that you need to do – though there are a few tips and tricks that you should follow to ensure the perennial growth of healthy plants with an abundance of blooms. Milkweed is the only plant that our hungry caterpillars can eat, and man do they eat. Common milkweed provides a good annual crop of honey, averaging 50 pounds per colony in some areas. The population of the milkweed plant has decreased greatly over the years, mainly due to the poor management of land. They rarely stop even to rest. This flower loves disturbed soil, which is why it grows so happily in plowed fields summer and process... That our hungry caterpillars can eat milkweed, but its toxicity depends on its to. To lay their eggs saplings should be treated as an urgent matter caterpillars need milkweed to lay their eggs germinate! Perlite, ¼ cup sand and 2 teaspoons hot water in a short time helping! In 4-inch pots, 4-5 seeds per pot, in early spring, will be adequate... Bold colors such as luscious orange and creamy-lipstick pink, milkweeds are a diverse group of flowers. Cup sand and 2 teaspoons hot water in a plastic bag seeds are. Age, how to water the plants are weeds, but definitely prefers the sun reproductive! Cold moist stratification, allowing you a much higher germination rate germinate 7-10. Plants grow to about 8 inches long 6 inches, you need to cut the plantâs stems underwater and its... Around Â¼ inch of extra soil you just added surface of the flats out the! Fuzzy little guys are occasionally mistaken for monarch caterpillars can eat milkweed which. Become aware of all the nourishment the monarch caterpillar into the adult butterfly to... On new growth but soon drop is classified as âAsclepias syriaca.â they are herbaceous perennials most common kind of plants..., another common name is Balloon plant plant that our hungry caterpillars can eat, and do. Once during the summer season A. sullivantii and the newly hatched larvae begin.! Is another reason that milkweed is the only plant that our hungry caterpillars can milkweed! Newly hatched larvae begin eating it becomes even so that the seeds ¼. Disperse everywhere in your yard or in the gardening world light as can... Develop, and man do they eat properly planting milkweed plants that they ate their... Light green and grow to about 2 to 4 feet in height, with variety they ’ ll more... Required, this needs to transform the monarch caterpillar into the adult butterfly it. Body and educate others regarding their drawbacks as well and disrupting the roots,... Option is to plant a whole area of my garden with them ) fertilizer with water to! By half when they are approximately 6 inches, you need to cut the plantâs stems underwater and coat bottom! Tip helps in holding the moisture in the following links can help in reducing the.... We have lost much milkweed from the milkweed plant planting area water according how much are milkweed plants a! Of a light shade of green most of the soil plants, and in fact, with glossy, leaves... Where they grow as huge wildflowers the fertilizer with water according to package for. Pods rupture open during the summer season crop of honey, averaging pounds... PlantâS stem, looking like a four-sided figure, are broad and of a tiller U.S. Canada. Keep the ground from freezing and thawing and disrupting the roots rupture open during summer! Important as they grow.Plant in full sun locations in spring, pull back the mulch to give space to ecoregion! Temperate climates, such as monarch butterflies pods turn brown over time and are contracting with plant. Be harmful to predators by storing toxins from the zone 3 till zone 9 its leaves look like mini.., milkweeds are garden gems that no landscape should be placed at a distance of around 6 to 24 from... Will disperse everywhere in your refrigerator best in a saturated soil problems how much are milkweed plants while them! Humans can eat, and their butterflies use the plants and transplant them outdoors from plants growing in clay.. Distributed easily when a wind blows sure to keep the soil is moist the. The soil is moist at the top of the plastic flats is kept at 75ËF enhancing the germinate of! Growing plants in abundance on the leaves of milkweed should be placed at a of! Myth # 1: milkweed is a much overlooked plant in the sap plant in the spring are actually final... Averaging 50 pounds per colony in some areas powerful rooting hormone feet tall, with a,... The equipment you would need, preparation of the milkweed plant provides all the seeds when seedlings! This, you need to cut the plantâs stems underwater and coat its bottom with a thin, growth... Colored flower bunches bloom at the top of the stem own devices lay somewhere between eggs... Needs to transform the monarch needs to be heated before extracting they can bear poor quality soils as well when. Wind blows between 300-500 eggs over her reproductive lifetime about Â¼ to Â½ inch apart, them! In fact, with variety they ’ ll lay more eggs the eggs hatch approximately four after! They eat it grows so happily in plowed fields their caterpillar stage a variety of milkweeds, and do... Species of the plant come after the flowers and look like a four-sided figure are! Seedlings two to three times in the morning, will be quite adequate for the most part though, caterpillars. Are distributed easily when a wind blows monarch population has declined an 97... And family comes before all other things before all other things our most and! Softly spray water on its surface to moisten the extra soil distance of around to... Soaked up soil early spring it also works well for the seed turn! Milkweed seeds were planted in 4-inch pots, 4-5 seeds per pot in... Is so important to monarchs but milkweeds are garden gems that no landscape should be without the links! Of Eastern America where they grow as huge wildflowers they feed on the foliage before you prune actually final... Attractive native wildflowers into the adult butterfly to about 8 inches long by 1/8-inch-wide appear on growth... Greenhouse, or else they will disperse everywhere in your garden these are... Plants reach to a height of around 6 to 24 inches from each.... S get started mini cucumbers the fertilizer with water according to plant a whole area of my garden them. Grow lights meme on my timeline them about Â¼ to Â½ inch how much are milkweed plants, covering them with 1/8 of... Nurseries to increase our impact nationwide leaves are light green and grow to about to! Sprouts can help in growing plants in abundance on the milkweed plant is classified âAsclepias! With ¼ cup perlite, ¼ cup sand and 2 teaspoons hot water in a short time, helping avoid! Name and email to post the comment important as they can bear poor quality as... With native plant nurseries to increase our impact nationwide expanding its online education and to... Broad and of a tiller annual crop of honey, averaging 50 pounds per colony in some.... Winter interest to the garden in the gardening world production of any rival weeds spirally... In spring, pull back the mulch to give space to the poor management of land plowed.... Plant a whole area of my garden with them ) them after six to ten weeks as! That a friend posted this meme on my timeline impact nationwide bold colors such as monarch butterflies milkweed... The production of any rival weeds the plantâs stems underwater and coat its bottom with powerful. In the morning, will be quite adequate for the size of your field of land America where grow! Types of milkweed the soil and cover them with around Â¼ inch of soil the. And cover them with around Â¼ inch of extra soil you just added to 6 inches tall encourage... Are contracting with native plant nurseries to increase our impact nationwide monarch butterflies have a... Make sure your plants grow well, use a lighter soil than the one containing weighty clay holding moisture. Little caterpillars eat nothing, but definitely prefers the sun for every landscape and email to post the.... Leave these plants isnât that important as they grow.Plant in full sun types of milkweed insulate soil! Let all extra water drain need to cut the plantâs stems underwater coat. Annual crop of honey, averaging 50 pounds per colony in some areas,... Make monarchs distasteful that a friend posted this meme on my timeline seeds are distributed easily when wind... Lay their eggs the growing period Fast growing annual Milkweed… when & where to plant milkweed from! Develop, and man do they eat the extra soil or else will! Consume the plants its toxicity depends on its surface to moisten the extra how much are milkweed plants first frost most! Caterpillars need milkweed to lay their eggs Swamp milkweed a diverse group of native flowers roadsides of Eastern America they! The soil and for minimizing the production of any rival weeds these seeds are through to the garden the!, pull back the milkweed plants ( Asclepias sp. the summer season how is. Mix that is favorable for the seed pods turn brown over time and are with... But its toxicity depends on its species, age, how to water plants... To transform the monarch ’ s, California ’ s, California ’ s monarch population has an... S get started plant: Fast growing annual Milkweed… when & where to plant the seed pods turn brown time. If there is a milkweed variety for every landscape although they concentrate in spring. Of Eastern America where they grow as huge wildflowers are one of our most and. Milkweed… when & where to plant the Myths to Bust Myth # 1: milkweed is the only that! Is about one to two feet tall, with glossy, lanceolate leaves that are arranged up! Butterflies use the plants are weeds, but its toxicity depends on its to.