|Asclepias speciosa (Showy Milkweed) Wildflower Seeds Be the first one to write a review|
Origin: US Native Wildflower
Other Common Names: Greek Milkweed, silkweed
Bloom Time: Summer
Height: 24 in to 36 in
Spacing: 24 in to 36 in
Light: Full Sun
Soil Moisture: Medium
USDA Zone: 3a-9b
Germination: No pre-treatment needed. Sow seeds on soil surface at 70F and water.
Seeds Per Oz: 5800
A popular native wildflower in western North America, Showy Milkweed commonly occurs on rocky slopes, woodland areas, or along roads or streams. John Torrey, a Columbia University botanist, recorded this species for science in 1820 from a specimen found near the Canadian River. At one time, the silk from this plantís seed pods was spun for fabric or used for stuffing pillows; in World War II, school children gathered the silk to provide a cheap filling for soldiersí life jackets. Commercial attempts to make use of this abundant plant included the manufacture of paper, fabric, lubricant, fuel, and rubber; eventually these became impractical and were abandoned. Though this plant is toxic to most animals, butterflies are immune to the plantís poison and actually become rather poisonous themselves as protection from predators.
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