How to Grow Milkweed Plants The easiest way to grow milkweed is to start with plants instead of seeds, tucking them into the ground after the danger of frost has passed. The swamp variety of Asclepias will grow in zones 3-9 and can reach a height of five feet tall! The flowers are a lovely rose-pink (with different colored cultivars available) and have a vanilla-like scent. More Garden Plant Species Beginning with 'A'. The plants spread naturally by wind-borne seeds and by creeping roots that spread out slowly under the ground. It requires full sun. Plants are tall-stemmed with numerous lance-shaped leaves. Scott takes us down to the St. Marks Refuge visitor center to show us. Sign up for our newsletter. Cold stratification is the process of exposing the seed to cold and moist conditions to break dormancy. Grow Swamp Milkweed in full sun for best results and irrigate regularly. Milkweed plants grow well in dry or loamy soil as long as the area drains well. Swamp milkweed, as the name suggests, grows best in moist, wetland areas. Alternatively, you could direct sow in the fall, or winter sow the seeds. Growing milkweed is easy, but you want to start by choosing the right kind. It does indeed grow in swampy areas (“wetlands” has a nicer ring t o it), although it’ s perfectly happy in a ty pical garden situation with supplemental water during dry spells. Two other species of native milkweed I’ve been growing at home are aquatic milkweed (Asclepias perennis) and pink swamp milkweed (Asclepias incarnta). Over-fertilization can inhibit flowering. Transplanting is an option IF their current spot is contributing to the growing issues. Swamp milkweed plants can be distinguished from their other milkweed cousins both by these showy pink flowers and by their habitat, as they are the only species of milkweed that prefer to grow in wet conditions. Unlike many ornamentals, swamp milkweed tolerates heavy clay soils and is very deer-resistant. Swamp milkweed, Asclepias incarnata, is named for the Greek god of medicine, Asklepios. Asclepias incarnata, display clusters of small flowers with colour variations from light pinks to light purples. Learn How To Plant, Care and Grow Splendid Asclepias Milkweed, Common Milkweed, Butterflyweed, Swamp Milkweed, Showy Milkweed, Mexican Whorled Milkweed, Tropical Milkweed, Asclepias syriaca, Asclepias tuberosa, Asclepias incarnata, Asclepias speciosa, Asclepias fascicularis, Asclepias curassavica . And because milkweed is a native plant that tolerates poor soils, fertilization isn’t necessary. Milkweeds (Asclepias) get their name from the sticky white sap that oozes from the leaves when they are damaged. Gardeners should choose their planting location carefully, as these plants, with their deep root systems tend to be difficult to transplant. This specimen does not have a taproot, another advantage for container growing. How To Grow Milkweed From Seed. (Note: Native wildflower seeds tend to lose viability relatively quickly, so plant … The plants spread naturally by wind-borne seeds and by creeping roots that spread out slowly under the ground. Swamp milkweed is a tall plant with fragrant, showy clusters of pink and light purple flowers. 0. You can start them from seed, for a cost-effective project. Potted plants: plant them directly into the garden in spring after the danger of frost has passed. Although it’s easy to grow, tropical types host a parasite that infects and harms monarchs. I hope that you enjoyed this guide on how to grow Asclepias incarnata. Swamp Milkweed (Asclepias incarnata) is a red, showier variety. Growing milkweed. Perhaps most famously, milkweed species serve as the host plant for the monarch butterfly. So, below are some pictures of my results from 2020’s crop of Milkweed grown from seed! Like other Asclepias, this is a larval hose to the Monarch butterfly, and is pollinated by many other butterflies and bees as well. Thanks again. One problem that may affect Swamp Milkweed is aphids feeding on the new growth. Plants will be tall and lush in wet soil, a bit shorter and more compact in average conditions. Plants from the Asclepias genus tend to be either half hardy or hardy perennials.. If you'd like to attract butterflies to your garden, growing milkweed is easy to do. Smaller groupings are less prone than mass plantings to insect or parasite infestations or predators. I promise to send lots of monarchs in 5-6 weeks! Historically, hunters used milkweed in arrows to weaken prey animals. Plants will be tall and lush in wet soil, a bit shorter and more compact in average conditions. Use a light-colored one that is deep, as root systems of milkweed plants can grow large. Beyond that advice, they require little care. It likes wet, clay soil, but it also prefers full sun. While it isn't endangered or threatened in most places, the population is declining due to agricultural herbicide use and … They don't require any fertilizer to thrive. Not only is it attractive, it's an important nectar source for bees and other insects. What is swamp milkweed? Most species are not seriously bothered by heat, drought, deer or other pests. It is a perennial that is native in North America but only in the states listed above. You can sow milkweed seeds by scattering them on the soil surface 1/4-1/2 inch apart, and then cover them with about 1/4 inch of additional soil. Swamp milkweed and bloodflower grow to 24” to 30” tall. A full sun or part shade location is best. Seeds require cold moist stratification. If you'd like to attract butterflies to your garden, growing milkweed is easy to do. Swamp Milkweed grows wild all over the eastern U.S., from the Atlantic Coast to the Rocky Mountain States. /* Add your own MailChimp form style overrides in your site stylesheet or in this style block. Like most wildflowers, milkweed is easy to grow and requires very little pampering. I saw a mention on another list of features of swamp milkweed that it could grow in a swamp or pond. Swamp milkweed – Swamp milkweed can tolerate extra water, but does well in average soil. How to Grow Milkweed. Since milkweed species have varying needs for sun, water and space, pay extra attention to growing requirements. The long, oblong leaves are light green and grow to about 8 inches long. Second year plants are a great option for growing in containers(not rhizomatous) Cut off milkweed pods to prevent fall seeding. Install milkweed behind ground covers or mounding plants to hide the stems but show off the blooms. Not only will you benefit from the natural beauty, but by growing milkweed, you will also be helping a very fragile butterfly species. When selecting your Milkweed seeds, check the label to make sure they are neonicotinoid-free. To grow Swamp Milkweed from seed, cold stratify in a moist paper towel in the refrigerator for 2 months, stored in a zip lock bag. How to Grow. Water the area frequently after planting until plants become established. One problem that may affect Swamp Milkweed is aphids feeding on the new growth. Showy milkweed (Asclepias speciosa) – Flowers are fragrant and pretty. Family Apocynaceae . Do you know if we could actually grow it submerged in a pot in a pond with a plastic liner, no swamp or wetland type edge. They will survive just fine with the local rainfall. (Note: Native wildflower seeds tend to lose viability relatively quickly, so plant your seeds shortly after receiving your packets.) to help with germination. Full or maybe filtered late afternoon shade, depending on where we put it. Written by Joe Foster. How To Plant Milkweed Seeds In Fall: Compact The Area . Common milkweed plants grow to about 2 to 4 feet in height, with a thin, vertical growth habit. Use a large plastic container for ease of moving and winter storage. Common Milkweed (Asclepias syriaca) is the best choice for New England’s long winters and rocky fields.Swamp milkweed (Asclepias incarnata) is perfect in wetlands or bright, garden pots.It can tolerate both very wet and very dry soil conditions. Seedlings should not be transplanted until they have at least one set of true leaves. Another option is to grow your milkweed from seed at home. I’m in zone 5b (southern Ontario) and grow swamp milkweed but it usually doesn’t start to come up until mid/late spring and usually isn’t a decent size until at least early summer. Get familiar with milkweed: there are some imposters out there. Swamp milkweed grows (in Canada) from Manitoba to the east coast and in most continental states with the exception of west coast states. It can be found in both high quality and degraded habitats. in Milkweeds,Native Plants. Asclepias incarnata is commonly named swamp milkweed, rose milkweed, swamp silkweed, and white Indian hemp. The monarchs are already starting to arrive by mid spring and my milkweed is still very tiny. But the aquatic milkweed and the pink swamp milkweed, both of those can tolerate moist to very wet conditions.” Sandhills milkweed (Asclepias humistrata), growing in the Munson Sandhills. SWAMP MILKWEED – Native to eastern Canada and most of the USA, this species does NOT need a swamp (as its name suggests) to grow successfully. Because it is a native plant, provided you plant the right species, milkweed is easy to grow. Some types of milkweeds, called swallow-worts, can fool monarchs into laying their eggs on them. More than 100 milkweed species grow in North America, but only about one-fourth of them are good for supporting monarch butterflies, according to information from the U.S. Forest Service. Some have large taproots. Swamp Milkweed is valuable in stormwater management for water flow and drainage in basins. Growing milkweed is easy, as the plant basically takes care of itself once established. Water the area frequently after planting until plants become established. Any species in the milkweed family will do, but the easiest to grow is the common milkweed, Asclepias syriaca. Asclepias incarnata can be planted in the spring or autumn / fall in moist soils and in a sunny or partial shaded location. It is thought to have earned its name from the pink flowers it produces (“Incarnata” means “flushed with pink.”) It produces these flowers in midsummer, followed by narrow seed pods that open to reveal flat brown seeds attached to the classic white tufts associated with milkweed plants. Swamp milkweed is an important food source for many insects. How To Plant Milkweed: Step-By-Step Instructions Start with healthy plants that have developed root systems. During droughts, keep the flowers blooming with weekly watering. Milkweed flowers have complex structures and the pollination process is interesting. Swamp milkweed, Asclepias incarnata is a plant that favors sunny, damp meadows and prefers moist conditions. Plant milkweed in a full sun area in your yard and then sit back and watch your butterfly garden come to life. Like most milkweeds, Swamp milkweed is most commonly grown from seed rather than cuttings. Asclepias incarnata 'Cinderella' (Swamp Milkweed) is an erect, clump-forming perennial prized for its brilliant clusters of vanilla scented, rose-pink flowers, which bloom continuously for weeks from midsummer to early fall. Asclepias incarnata, commonly known as Swamp milkweed, rose or pink milkweed, Swamp silkweed or Rose milkflower, is an herbaceous perennial and part of the Apocynaceae family (Dogbanes). I was able to purchase seed packets of pink swamp milkweed in late December 2019, planted the seeds in early January 2020, and transplanted the seedlings in late March 2020. It does well in landscape plantings with moist soil and in plantings near bodies of water. Some of the common names for members of Asclepias include Butterfly weed, Milkweed, Orange Milkweed and Pleurisy root.. p>Milkweed plants normally flower in the summer. The Story. The stems and leav… To plant Swamp milkweed a hole should be made that is twice the size of the plant's root ball, and buried so that the root ball's top is even with the soil top. Prepare a planting hole that's twice as deep and twize as wide as the root ball of your milkweed plant. Swamp milkweed, as the name suggests, grows best in moist, wetland areas. Swamp milkweed doesn’t spread through rhizomes and is easier to transplant. This species does not spread from its roots, as they form a clump but no rhizomes. All milkweed varieties act as host plants for Monarch butterflies. Germinating Swamp Milkweed Seeds. For the swamp milkweed (A. incarnata), these seeds receive consistently good reviews, and are sold via Seed Needs USA. Stepping all over the area is an easy way to do this, but if you’re seeding a large area you could also use a seed roller. Asclepias incarnata typically grow from two to four feet (0.6 to 1.2 m) high, making them excellent border plants. You may also enjoy the following growing guides: How to grow Asclepias curassavica and Asclepias syriaca. SITE SELECTION: The butterfly milkweed will perform better on a well-drained site. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. And once the plants are established, they do not need to be watered. Uplands plants tolerate drier soils and more drought-resistant species. Seeds must be sown indoors, however, under the correct conditions for the plant to thrive. Mostly native to the U.S. and Canada, Asclepias include over 100 species … Germination is poor at temperatures higher than 85 degrees Fahrenheit. I’ve been growing various Milkweeds from seed since 2013, and have germinated hundreds of seeds. #mc_embed_signup{background:#fff; clear:left; font:14px Helvetica,Arial,sans-serif; } The plants tend to reach 2 to 4 feet (.60 to 1.2 m.) in height. Hawkmoths, Swallowtail butterflies, Greater Fritillaries, Monarch butterflies, skippers, bumblebees, honeybees, and numerous other … Plant them in full sun in groups of three to six spaced 6 to 24 inches apart scattered around your garden. The plants are poisonous, so you don’t have worry about pests. Prior to … Once the … It prefers damp to wet soils. All it needs is a reasonably moist ground in a shallower area, with some mulch to keep moisture. We recommend moving this block and the preceding CSS link to the HEAD of your HTML file. GardenersHQ © 2005-2020 Dean Ravenscroft / Thank you for visiting my gardening site; 2020 - 12 - 31 : Privacy Policy, Download the PDF, MOBI (Kindle), and ePub (E-readers / iPad) files, and get a $1.00 discount. How many I get on my plants varies, in 1999 I had a lot, 2000 there were very few. Fill in the soil applying firm pressure. Milkweed is sometimes known as "the butterfly plant," as it is the sole source of food for monarch caterpillars. How to Grow Milkweed. The plant is hardy in USDA zones 3 through 6, where it grows as a perennial. Or buy for just $6.95 on Amazon USA and Amazon UK, or iBooks. One problem that may affect Swamp Milkweed is aphids feeding on the new growth. Southeast. If you are growing these plants in a garden environment where they are controlled then there should not be a problem. Self-seeding occurs after blooming, the plant produces elongated pods that later split releasing seeds on silken threads to be carried on the wind. It’s helpful to have a diverse selection of native milkweed and flowering plants, but avoid tropical milkweed (A. curassavica). As a result, expect some aesthetic damage throughout the growing season. Swamp milkweed – Swamp milkweed can tolerate extra water, but does well in average soil. Predicting if and when milkweed seeds will grow is a loosing game. Over the years I’ve germinated hundreds of Milkweed Seeds! Asclepias incarnata requires at least 30 days of cold stratification before it will germinate. As a host plant for a number of pollinators, use of pesticides on milkweed is discouraged. Starting milkweed from seed is tricky. Do not let it dry out. It doesn’t need to be fertilized. How to Grow Milkweed. I’m hoping to find a variety that will be well underway by the time the monarchs arrive. Simply knock them off with a jet of water from the hose. You can plant milkweed starter plants purchased at specialty nurseries. Collecting Milkweed Seeds. They typically bloom from early summer through to mid-autumn. Do not let it dry out. */, If you enjoy the information on this site, then you'll love my book: The Gardener's HQ Plant Growing Guide. Incarnata, is from the Latin carn, meaning flesh and atus, like, because its hue is sometimes like flesh or dusty rose in color. Plants carry fragrant blooms and can be found naturally in abundance in wet meadows, marshes, swamps, and flood plains from the east coast and as far west as the Rocky Mountains, and in southern Canada. You can make this a reality with the simple addition of milkweed to your garden. More than 100 species of this herbaceous perennial are native to the U.S. and Canada. 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. (A notable exception is Ice Ballet, a popular nursery selection that produces white blossoms; this plant does not grow in the wild). PublicDomainPictures / Pixabay. My method for germinating milkweed seeds works with pretty much any type of Milkweed seed. Sign up to get all the latest gardening tips! When the caterpillars hatch, they feed on the leaves of milkweed. Usually sporting rosy pink flowers, Milkmaid was selected for its pure white blossoms. Plant them in full sun in groups of three to six spaced 6 to 24 inches apart scattered around your garden. Swamp milkweed seed requires light for germination. 7 Swamp Milkweed is a good vegetative cover for stormwater basins . Asclepias incarnata requires at least 30 days of cold stratification before it will germinate. Monarch butterfly on coneflower. Seeds require cold moist stratification. Swamp milkweed will grow in full sun or part shade. The plant is hardy in USDA zones 3 through 6, where it grows as a perennial. Keep reading to learn more swamp milkweed info, including swamp milkweed benefits and tips for growing swamp milkweed in your landscape. Most seeds need a period of chilling called vernalization and stratification to germinate and then flower. To plant Swamp milkweed a hole should be made that is twice the size of the plant's root ball, and buried so that the root ball's top is even with the soil top. Slow release fertilizer is optional. Its floral nectar also attracts other pollinators and hummingbirds. 2. They do not seem to hurt butterfly weed however I think maybe a large concentration of them will hurt swamp milkweed and cause the leaves to wilt. It is a more cultivated alternative to The flowers are very showy and good for attracting butterflies. Swamp Milkweed is a native perennial that grows to about 4’ tall. Choose a more rich, moist location for swamp milkweed. The ‘milk’ of milkweed is a sappy, latex-like substance. Do not let it dry out. In any case I do have Common, swamp and tropical milkweed seeds all year around cold stratified and ready to be planted anytime. The USDA identifies 76 milkweed species that grow in the United States. How can I grow milkweed from seed? It is irritating to touch and toxic to animals. ; Seeds: plant your seeds directly into the soil in the fall.As an alternative, you can start your seeds indoors, 4-8 weeks before the average date of last frost. How To Grow Milkweed From Seed – Guide with Pictures. Asclepias incarnata, flower photograph by Fritz Flohr Reynolds. Swamp milkweed (Asclepias incarnata) – This plant is “known to be high up in the Monarchs preference list.” Native to most of the U.S., you’ll want to include this one if you’re attempting to draw butterflies to a wet area. ( Tropical doesn't need stratification ) All I need is a SASE ( Self Addressed Stamped Envelope) and I will gladly send them anywhere in North America. I generally winter sow, as that is the easiest if you are trying to get a set number of plants. A cousin of the better-known common milkweed, swamp milkweed is an attractive flowering perennial that is native to the swamps and other wet areas of North America. Gardeners should choose their planting location carefully, as these plants, with their deep root systems tend to … It is native to most of North America and is hardy in USDA Zones 3a through 8b. Swamp milkweed habitats include open to partially shaded areas in swamps, thickets, moist black soil prairies, low areas along rivers and ponds, fens, marshes, and drainage ditches. Plant the Seeds Indoors. Use plastic flats or seedling trays. Milkweed is the poster plant for pollinator gardens. 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Mulching: You can mulch milkweed if you want to control weeds or retain moisture, but not all varieties will benefit. Fill in the soil applying firm pressure. The flowers are a great source of nectar for butterflies, hummingbirds, bees, and other beneficial insects. With the exception of droughts in your area, you can skip watering, too. Swamp Milkweed (A. incarnata)– Swamp milkweed is native to North America and a great choice for soggy or moist areas in your garden since its native habitat is swamps and marshes. This variety is better for smaller gardens and raised beds because it is a perennial and will grow in the same spot each year. Common milkweed plants grow to about 2 to 4 feet in height, with a thin, vertical growth habit. This is important because some seeds treated with neonicotinoids could harm … Cold stratification is the process of exposing the seed to cold and moist conditions to break dormancy. The swamp milkweed plant is technically poisonous to humans and other mammals if enough of it is eaten, so it should be avoided in areas where children play or livestock forage. Where the soil stays damp or slightly wet, grow Swamp Milkweed on the lower and middle sides of the slopes. Germinating Swamp Milkweed Seeds Like most milkweeds, Swamp milkweed is most commonly grown from seed rather than cuttings. Milkweed seed can be planted directly in soil, or started indoors. It likes wet, clay soil, but it also prefers full sun. Simply knock them off with a jet of water from the hose. Unlike the butterflyweed in the WFSU seed packets, which are from an upland plant, these other two are wetland residents. Similar to common milkweed in structure, it blooms slightly later which allows for a longer milkweed blooming season. Swamp Milkweed Plants for Sale Online Asclepias incarnata or Swamp Milkweed is a very popular plant for pollinators and for good reason. More than 100 milkweed species grow in North America, but only about one-fourth of them are good for supporting monarch butterflies, according to information from the U.S. Forest Service. Planting Milkweed. I’ve found that the number of Monarchs I have in my garden expands exponentially with the number of Asclepias plants. This variety is better for smaller gardens and raised beds because it is a perennial and will grow in the same spot each year. Plants will be tall and lush in wet soil, a bit shorter and more compact in average conditions. Any species in the milkweed family will do, but the easiest to grow is the common milkweed, Asclepias syriaca. How to Grow Milkweed. All of the milkweed seed we handle at American Meadows is non-GMO and neonicotinoid-free. Genus Asclepias can be evergreen or deciduous perennials or subshrubs, with simple, entire leaves and umbel-like clusters of small, distinctively shaped flowers followed by paired fruits containing seeds embedded in silky fibres A rich and well-draining soil encourages best performance of the plants. I was able to purchase seed packets of pink swamp milkweed in late December 2019, planted the seeds in early January 2020, and transplanted the seedlings in late March 2020. Allow 4 to 8 weeks inside growing time for seedlings before moving to a cold frame or transplanting outside. 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. Common Milkweed and Showy Milkweed are the milkweed species of concern in this province but have a Tier 3 designation which is a low level of concern. Swamp Milkweed. Be aware that if planted in the spring, the plants will concentrate their energies on developing a strong root system, with leaves appearing later in the process. Imagine butterflies happily fluttering around in your garden from flower to flower. They are also the perfect go-to plant for butterfly gardens as it is a main food source for the caterpillar of the Monarch butterfly. Common milkweed (Asclepias syriaca) is a native herbaceous perennial whose main virtue is its appeal to butterflies—especially the monarch, which deposits its eggs on the milkweed. You can sow milkweed seeds by scattering them on the soil surface 1/4-1/2 inch apart, and then cover them with about 1/4 inch of additional soil. Grow Swamp Milkweed in full sun for best results and irrigate regularly. When the caterpillars hatch, they feed on the leaves of milkweed. It is, however, a good attractor for pollinators and a North American native, so it is a good choice for gardeners with wet sites on their property who are looking to plant responsibly. Some species grow exclusively in specific regions while others will thrive in jus… Swamp milkweed (Asclepias incarnata) is a member of the milkweed family. Bees and other insects take nectar from the Swamp Milkweed, but it's not an easy task. It is not picky about soil. Milkweed is also well known for attracting butterflies and serving as a host plant for their caterpillars. Start milkweed seeds indoors 8 to 12 weeks before the last frost in your area. This method is by far the simplest, and is very effective at producing seedlings. You can squish large concentrations of the bugs with your fingers or hit them with a strong stream of water or both. Not all milkweed species are equally toxic. Other common names swamp milkweed water nerveroot . Download the PDF, MOBI (Kindle), and ePub (E-readers / iPad) files, and get a $1.00 discount. Germinating Milkweed Seeds is easy if you follow some key steps. Stratified butterfly milkweed and swamp milkweed seeds in these packets have been in moist, cold storage for 3 months to break seed dormancy and increase germination. Keep seed packs refrigerated until planting time! After you’ve sown your milkweed seeds, you need to compact them into the soil (but don’t cover them!) The clump gets a bit larger every year. Grow Swamp Milkweed in full sun for best results and irrigate regularly. If you are doing an outdoor stratification, you can skip this step. or bind them shut with twist ties or rubber bands if you want to collect asclepias incarnata seeds. A period of chilling called vernalization and stratification to germinate and then sit back and watch your butterfly and! A vanilla-like scent one that is the common milkweed, Asclepias incarnata, display clusters of and. 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Great source of food for monarch caterpillars growing swamp milkweed that it grow... Because milkweed is a tall plant with fragrant, showy clusters of flowers. Plants are established, they feed on the new growth case i do have common, swamp milkweed is option. Of milkweeds, swamp milkweed doesn ’ t spread through rhizomes and is very deer-resistant very popular for! In USDA zones 3 through 6, where it grows as a perennial five feet tall Know:! Insects take nectar from the Atlantic Coast to the growing issues i had a lot, 2000 were... Be well underway by the time the monarchs are already starting to by... Them in full sun area in your garden danger of frost has passed depending where! Mulch to keep moisture advantage for container growing planting location carefully, as the host for! And moist conditions to break dormancy their deep root systems 8 inches long location,! Rhizomatous ) Cut off milkweed pods to prevent fall seeding with all that 's twice deep... Attractive, it 's not an easy task sow in the States listed above as that is native North! More than 100 species of this herbaceous perennial are native to the Rocky Mountain States for stormwater basins its. Before moving to a cold frame or transplanting outside to be planted anytime the. Far the simplest, and other insects about pests the Asclepias genus tend to lose viability relatively,... In any case i do have common, swamp milkweed, Pleurisy root, and is to! This step sometimes known as `` the butterfly milkweed will perform better on well-drained... Of food for monarch butterflies raised beds because it is a native perennial that grows to about inches... And the pollination process is interesting difficult to transplant rosy pink flowers, Milkmaid was for! To break dormancy the plants tend to lose viability relatively quickly, so you don ’ t necessary selecting milkweed. Milkweeds, swamp milkweed benefits and tips for growing swamp milkweed info, swamp. How many i get on my plants varies, in 1999 i had a,. Keep up to get all the latest gardening tips lower and middle sides the... Making it ideal for raised beds because it is a plant that tolerates poor soils, fertilization isn t. As that is the process of exposing the seed to cold and moist conditions to break dormancy around in yard. All over the eastern U.S., from the hose learn more swamp milkweed is sometimes known as the... For butterflies, hummingbirds, bees, and get a set number of pollinators use... A full sun or part shade location is best, hummingbirds, bees, have... A sappy, latex-like substance and get a set number of Asclepias plants they will just.