Asclepias verticillata (Whorled milkweed)

Cultivation

Best grown in well-drained, sandy loam in full sun. Tolerates partial shade, moist soil, and drought. Tends to spread by rhizomes. Stems ooze a milky sap when cut or broken. Flowers are a nectar source for numerous butterflies and leaves are a food source for monarch butterfly larvae.

Suggested uses

Gravel, Flower Arranging, Beds and borders, Cottage/Informal, Drought Tolerant, Low Maintenance, Wildflower, Wildlife, Prairie planting, Naturalised in turf, Bees (attract & feed bees), Meadow

UK hardiness

H7

USDA zones

Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9

Sunset zone

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Upright

Native to

Eastern North America, Central North America

Drought tolerant

Yes

Flood tolerant

No

Toxicity

All parts are poisonous if ingested.