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Christine Williams, Mackenzie Cowan, Sandra Miles, Sally Villegas, and West Eugene Wetlands staff.

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USFWS Mountain-Prairie

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Asclepias speciosaAsclepias speciosa

Showy Milkweed

In Stock: 0.184 lb (Total:0.184lb)

Asclepias speciosa

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0.18 lb

Details

Germination:

98%

Germination test:

Cut (Full Seed)

Purity:

99%

Seeds per lb:

79,550

Quantity:

0.18 lb

Collected in:

Utah

Crop year:

2022

Min. hardiness zone:

3

Item ID:

1831907

Characteristics

No Export to These Countries

England (Great Britain and Northern Ireland), United Kingdom

Growing Info

Scarification: Soak in water, let stand in water for 24 hours

Stratification: cold stratify for 30 days

Germination: sow seed 1/4" deep, tamp the soil, mulch the seed bed

Other: stratification improves germination, but is not required

Asclepias speciosa, commonly known as Showy Milkweed, is an eye-catching perennial plant in the dogbane family that is native to the western half of North America. The plant produces hirsute, pale pink through pinkish-purple flowers in dense umbellate cymes. The showy milkweed is a monarch butterfly food and habitat plant, and it also attracts the red-belted clearwing moth. The plant has edible parts, including flower buds, young shoots and leaves, immature seed pods, and raw seeds. The latex of the plant has been used as a cure for warts, skin sores, cuts, and ringworm, and can be applied once a day for a few weeks for the best results. The plant prefers a well-drained light rich or peaty soil and a sunny position. It is closely related to A. purpurascens, and its roots can spread freely when in favorable conditions. Showy Milkweed is a very ornamental plant with tough fibres obtained from the bark used in twine, coarse cloth, paper, and other things. The seed floss can be used to stuff pillows or mixed with other fibers to make cloth. It can also be utilized as a Kapok substitute and has been used to mop up oil spills at sea. Asclepias speciosa is hardy to US zone 3-9 and flowers from May through September.