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Code ASSO
Patent
Plant Type Perennials
Species incarnata
Height Tall 36-42"
Spacing Plant 18-24" apart
Bloom Time Mid-Summer to Late Summer
Sun / Shade Full Sun
Zones 3-9
Soil Type Normal, Sandy, Clay, Acidic
Water Needs High
Sold In Plantable Pots
Asclepias are best in sunny locations with sandy soils. Milkweed is a nectar source for Monarch butterflies and also a host plant for them to lay their eggs. Plant in groups to attract more butterflies. Idaho has restricted all potted plant material from being shipped into Idaho at this time.
Low maintenance. Self-sows readily. Can be slow to establish but is long-lived once it takes hold. Late to emerge in the spring. Divide and cut back in spring when new growth starts, being careful of long taproot. Long taproot makes division difficult. Be aware that Asclepias is slow to recover once moved or divided. Remove spent flowers to encourage rebloom and prevent self sowing. Allow some spent flowers from 2nd bloom to remain on plant to form ornamental fruit for late season interest.