More InfoOrigin: Not US Native Other Common Names: Bloodflower, Silkweed, Indian Root, Cotton Bush, Sunset Flower Duration: Annual Bloom Time: Summer Height: 18” to 36” Spacing: 15” to 18” Light: Full Sun Soil Moisture: Medium USDA Zone: 3a-10b Germination: No pre-treatment needed. Soak seeds in hot water for 24 hours, then sow seeds on soil surface at 70F and water. Seeds Per Oz: 11000 This tender perennial is native to South America, but has naturalized worldwide in many tropical and subtropical areas. It is part of the milkweed family, and as such, exudes a milky sap from the stem and leaves when cut. Monarch butterflies lay their eggs on this plant, and the resulting larvae use the plant leaves as a food source. The flowers are red-orange with yellow hoods, and bloom for a longer period than the perennial milkweeds that are winter hardy in some areas. These brilliant wildflowers also attract hummingbirds! Click Map to Zoom In Note: Many wildflowers can grow in areas outside of their natural range.
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