Close Swamp Milkweed

Swamp Milkweed
Common Name: Swamp Milkweed
Scientific Name: Asclepias incarnata
Other Name(s): Aka Rose Milkweed, Pink Milkweed, Red Milkweed, Swamp Silkweed, White Indian Hemp, Milkweed
Category: Herb/Forb
Habit: Herbaceous perennial
Bloom Color: Pink, Purple
Bloom Size: Under 1 in.
Bloom Shape: With five reflexed petals and an elevated central crown, appear in tight clusters (umbels) at the stem ends in summer; flowers are followed by attractive seed pods (to 4 in long) which split open when ripe releasing silky-haired seeds easily carried by the wind
Bloom Season: June - Oct
Fragrance: Fragrant
Foliage Description: Narrow, lance-shaped, taper-pointed leaves are 3-6in. long. Stems exude a toxic milky sap when cut
Height of Plant: 4-5 ft.
Spread of Plant: 2-3 ft.
Hardiness: USDA Zones 3 - 9
Light Requirements: Full sun, part shade
Water Usage: High
Moisture Requirement(s): Moist, wet
Soil Type: Rich, wet, very muddy to average garden moisture, thrives in mucky clay soils; wet meadow, prairie, field, riparian, swamp, marsh
Soil pH: Neutral to acidic
Native Range: Northeastern and southeastern United States
Usage: Beneficial to native bees, bumble bee, honey bees
Propagation: Self fertile
Maintenance: Low
Other Information: Swamp milkweed is an important food source (albeit somewhat less important than upland species of Asclepias) for the larval stage of Monarch butterflies
Photographer: Debi Bradford
Location: Native Plant Garden