Asclepias incarnata
swamp milkweed
Flower Color
Description
A thick-stemmed perennial with dense stems and narrow, mid-green leaves up to 15cm long. Clusters of dark purplish-pink flowers are produced from the upper part of the stems from mid-summer to early autumn, followed by narrow, upright seed pods up to 7cm long, green at first then turning pale brown before splitting to release the seeds with their parachutes
Mature Height
1.5m
Mature Spread
0.5m
Plant Characteristics
Foliage
Deciduous
Growth Habit
Bushy
Growth Speed
Moderate · 0.4 m/yr
Soil Texture
ClayLoamSand
Soil pH
AcidAlkalineNeutral
Soil Moisture
Moist but well-drainedPoorly-drained
Hardiness (RHS)
H6
Hardiness (USDA)
Zones 3-9
Flowering Season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Key Features
Generally pest-freeCottage and informal gardenPrairie planting