Alphabetical Plant Listing

Asclepias incarnata (Swamp Milkweed)

Swamp Milkweed, Pink Milkweed


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

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Requirements

Hardiness 3 – 6
Plant Type Perennials
Plant Family Asclepias
Exposure Full Sun
Season of Interest Summer (Mid,Late)
Height 4' – 5' (120cm – 150cm)
Spread 2' – 3' (60cm – 90cm)
Spacing 36" (90cm)
Water Needs Average
Maintenance Low
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive, Poorly Drained
Characteristics Fragrant, Showy
Tolerance Clay Soil, Deer, Wet Soil
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders, Ponds and Streams
Garden Styles Informal and Cottage

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maxaltamor / 123RF Stock Photo

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 3 – 6
Plant Type Perennials
Plant Family Asclepias
Exposure Full Sun
Season of Interest Summer (Mid,Late)
Height 4' – 5' (120cm – 150cm)
Spread 2' – 3' (60cm – 90cm)
Spacing 36" (90cm)
Water Needs Average
Maintenance Low
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive, Poorly Drained
Characteristics Fragrant, Showy
Tolerance Clay Soil, Deer, Wet Soil
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders, Ponds and Streams
Garden Styles Informal and Cottage

Great Plant Combination Ideas with Asclepias

Guides with Asclepias

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