Swamp Milkweed Plants. Asclepias incarnata commonly called swamp milkweed is an erect clump forming missouri native plant which is commonly found in swamps river bottomlands and wet meadows throughout the state it typically grows 3 4 tall less frequently to 5 on branching stems. 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.
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 when the caterpillars hatch they feed on the leaves of milkweed. Planting this on dry sites will be unlikely at having much success in survival. Cut the blooms off just above a flush of leaves when milkweed deadheading.
When large populations are present the plants will appear shiny due to the excretion of honeydew which can also promote the growth of sooty mold.
Like other species of aphids their populations can explode in a short amount of time. Common milkweed plants grow to about 2 to 4 feet in height with a thin vertical growth habit. When large populations are present the plants will appear shiny due to the excretion of honeydew which can also promote the growth of sooty mold. Swamp milkweed growing conditions.