Woollypod Milkweed

(Asclepias eriocarpa)

Woollypod Milkweed (Asclepias eriocarpa)

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Climate Requirements

Precipitation 14" - 32"
High Temp. 81°F - 94°F
Low Temp. 31°F - 42°F

Summary

Asclepias eriocarpa, commonly known as Woollypod Milkweed, is a perennial herb that is native to chaparral, foothill woodlands, and desert scrub regions of California, as well as adjacent areas of Nevada and Baja California. It typically grows to a height of 1.5 to 3 feet (0.5 to 1 meter) and spreads 1 to 2 feet (0.3 to 0.6 meters). The plant is characterized by its woolly stems and lance-shaped to oval leaves, which are covered in fine hairs. Woollypod Milkweed produces clusters of intricate white to cream flowers with bright pink tints, which are highly attractive to pollinators. The blooming period extends from May to October, and the flowers are particularly showy, making it a desirable species for native plant gardens.

Woollypod Milkweed is valued for its role as a host plant for monarch butterflies, providing essential food for their caterpillars. In cultivation, it prefers full sun to light shade and thrives in well-drained soils. While it is relatively low-maintenance, it can be susceptible to aphids and milkweed bugs. Woollypod Milkweed has historical significance as a source of fiber and medicine for several California Indian groups, and it continues to be used in habitat restoration projects.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 2-4 feet
  • Width: 2-3 feet
  • Growth Rate: Moderate
  • Flower Color: Pink, White
  • Flowering Season: Spring, Summer, Fall
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Drainage: Fast, Medium

Common Uses

Butterfly Garden, Deer Resistant, Drought Tolerant, Low Maintenance

Natural Habitat

Native to chaparral, foothill woodlands, and desert scrub regions

Other Names

Common Names: Kotolo, Woollypod Milkweed

Scientific Names: Asclepias eriocarpa, Asclepias eriocarpa var. microcarpa, Asclepias fremontii, Asclepias kotolo

GBIF Accepted Name: Asclepias eriocarpa