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Milkweed, Narrowleaf

Milkweed, Narrowleaf

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Asclepias fascicularis

A.k.a. Mexican Whorled Milkweed; a Great Basin native monarch butterfly attractor.

Milkweeds are the sole food source for monarch butterfly caterpillars. Narrowleaf milkweed is native to the western part of the Great Basin. Dainty plants with big showy blooms and narrow leaves also make beautiful ornamentals. 24" tall.

For more information about growing this plant, visit the USDA plant guide.

50 seeds.

Seeds grown by Grand Prismatic Seed in Salt Lake City, Utah.

Directions: Direct seed in fall for best results, or early spring, or plant into outdoor pots in fall and transplant in late spring. Plants are hardy to zone 6.

Planting Depth

Seed Spacing

Days to Germination

Days to Maturity

⅛”

12-18”

varies

perennial