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Another plus of growing either swamp milkweed or butterfly weed is that, unlike common milkweed, ... Related: How to Score Free Milkweed Seeds for a Monarch-Friendly Garden. 5. Don't Sow Too Deeply
A monarch butterfly on swamp milkweed Asclepias syriaca seed pods, upper image from August and lower from December Milkweed sprout, a few days after sowing Chemical structure of oleandrin, one of the cardiac glycosides. Members of the genus produce some of the most complex flowers in the plant kingdom, comparable to orchids in complexity.
Asclepias incarnata, the swamp milkweed, rose milkweed, rose milkflower, swamp silkweed, or white Indian hemp, is a herbaceous perennial plant species native to North America. [ 3 ] [ 4 ] It grows in damp through wet soils and also is cultivated as a garden plant for its flowers , which attract butterflies and other pollinators with nectar .
Breeding monarchs prefer to lay eggs on swamp milkweed (A. incarnata). [57] A. incarnata is therefore often planted in butterfly gardens and monarch waystations to help sustain the butterfly's populations. [58] [59] However, A. incarnata is an early successional plant that usually grows at the margins of wetlands and in seasonally flooded areas.
A monarch butterfly feeding on milkweed. (Shutterstock) The U.S. Fish and Wildlife Service is pushing for added protections for the monarch butterfly after seeing a population decline of about 80%.
More than 450 insect species feed on A. syriaca, including flies, beetles, ants, bees, wasps, and butterflies.It is among the most important food sources for monarch butterfly (Danaus plexippus) caterpillars in the northeastern and midwestern United States and is one of only three milkweed species on which the eastern monarch migration largely depends.
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