Asclepias incarnata (Swamp Milkweed) is an erect, clump-forming perennial prized for its brilliant clusters of fragrant, lilac-pink flowers, which bloom continuously for weeks from mid to late summer. Sitting atop upright branching stems, clad with stiff, lance-shaped, taper-pointed leaves, the colorful umbels give way to attractive seed pods in the fall, which persist into winter. The flowers are a great source of nectar for butterflies, in particular for the monarch caterpillar.
- Grows in sturdy, upright clumps up to 4-5 ft. tall (120-150 cm) and 2-3 ft. wide (60-90 cm)
- Thrives in full sun in medium to wet soils but tolerant of average well-drained soils.
- Low maintenance, this perennial plant is generally pest and disease free.
- Perfect for sunny borders, cottage gardens, butterfly gardens and near ponds and streams.
- Plants have deep taproots and are best left undisturbed once established.
- Stems exude a toxic milky sap when cut.
- Native to northeastern and southeastern United States