Curtiss' Milkweed (Asclepias curtissii) in the Milkweeds Database

Common names:
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General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 8b -9.4 °C (15 °F) to -6.7 °C (20 °F)
Maximum recommended zone: Zone 11
Plant Height: 2 to 4 feet
Leaves: Other: Large, dark green with undulating margins
Flowers: Showy
Flower Color: White
Bloom Size: Under 1"
Flower Time: Summer
Wildlife Attractant: Butterflies
Resistances: Humidity tolerant
Pollinators: Moths and Butterflies
Conservation status: Endangered (EN)

Conservation status:
Conservation status: Endangered

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