Swamp milkweed is an erect, clump-forming, native plant commonly found in wet meadows and along riverbottoms. An essential plant for the rain garden. The rosy pink flowers are a prime source of nectar for many butterflies.
All common names:
Tree or Plant Type:
- Deciduous (seasonally loses leaves)
- Chicago area,
- North America
- Mixed border
- Large plant (more than 24 inches)
- Full sun (6 hrs direct light daily)
- Zone 3,
- Zone 4,
- Zone 5 (Chicago),
- Zone 6
- Moist, well-drained soil,
- Wet soil
- Wet sites,
- Occasional flooding,
- Clay soil
Seasons of Interest:
- late summer
Flower Color & Fragrance:
Shape or Form:
2 to 5 feet high and 2 to 3 feet wide
Tree & Plant Care
Requires full sun in moist to wet soil, can tolerate well drained soils.
Foliage is slow to emerge in spring.
Plants have deep taproots and difficult to transplant.
Disease, pests and problems
Milkweed bugs and milkweed beetle are late season pests.
Disease, pest and problem resistance
Native geographic location and habitat
Commonly found in swampy areas and wet meadows.
Attracts birds & butterflies
Small rosy-pink flowers is a great nectar source for many butterflies and leaves are the larval host for the monarch butterfly.
Leaf or needle arrangement, size, shape, and texture
Opposite, 3 to 6 inches long, lance shaped with pointed tips
Flower arrangement, shape, and size
Small, fragrant, pink to mauve flowers (1/4 inch wide), with five reflexed petals in a loose umbels at the stem ends in summer.
Said to smell like vanilla scent.
Fruit, cone, nut, and seed descriptions
Long, 4 to 5 inch green seed pods (follicles) split and release light to dark brown seeds attached to silver-white silky hairs.