Tropical Milkweed, Blood Flower
Scientific Name: Asclepias curassavica L.
Synonym: Asclepias bicolor, Asclepias nivea var. curassavica
Family: Apocynaceae
Sunset®: All zones as annual
USDA: 9b-12 as perennial
Heat Tolerance: Protect from afternoon sun
Sun Exposure: Full sun to light shade
Origin: Southern USA to South America, West Indies
Growth Habits: Perennial herb, up to 3 feet tall (90 cm), 3 feet spread (90 cm)
Watering Needs: Rgeular water
Propagation: Seeds, softwood cuttings
The tropical milkweed is a host plant for the monarch caterpillar.
Blooming Habits:
Reddish orange and yellow flowers in umbels, in spring and fall.
Culture:
Sow the seeds 6 weeks before the last frosts. They germinate in 2 to 3 weeks at 75°F (23°C). The young plants will bloom at 4 months old or younger.
Propagation:
Sow the seeds 6 weeks before the last frosts. They germinate in 2 to 3 weeks at 75°F (23°C). The young plants will bloom at 4 months old or younger.
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