​​Greenhouses             Farm Market


Asclepias incarnata 'Cinderella'

Swamp Milkweed

 Zone: 3 to 6

Height: 4 to 5 feet

Spread: 2 to 3 feet

Bloom Time: July to August

Bloom Color: Pink, White

Bloom Description: White, pink, mauve

Sun: Full sun

Water: Medium to wet

Maintenance: Low

Flowers: Showy Flowers, Fragrant Flowers

Wildlife: Attracts Butterflies

Tolerates: Clay Soil, Wet Soil, Deer

Uses: Rain Garden, Will Naturalize


Easily grown in medium to wet soils in full sun. Surprisingly tolerant of average well-drained soils in cultivation even though the species is native to swamps and wet meadows. Plants have deep taproots and are best left undisturbed once established. Foliage is slow to emerge in spring.

Noteworthy Characteristics

Swamp milkweed is an erect, clump-forming, plant. It typically grows 3-4' tall (less frequently to 5') on branching stems. Small, fragrant, pink to mauve flowers (1/4" wide), each with five reflexed petals and an elevated central crown, appear in tight clusters (umbels) at the stem ends in summer. Narrow, lance-shaped, taper-pointed leaves are 3-6" long. Stems exude a toxic milky sap when cut. Flowers are followed by attractive seed pods (to 4" long) which split open when ripe releasing silky-haired seeds easily carried by the wind. Flowers are very attractive to butterflies as a nectar source. In addition, swamp milkweed is an important food source (albeit somewhat less important than upland species of Asclepias) for the larval stage of Monarch butterflies.


No serious insect or disease problems.

Garden Uses
Sunny borders, stream/pond banks, butterfly gardens. A good plant for low spots or other moist areas in the landscape.

Asclepias incarnata 'Cinderella'

Swamp MilkweedGood for Monarch Butterflies!