Asclepias fascicularis

California Narrow Leaf Milkweed

California Narrow Leaf Milkweed (Asclepias fascicularis) is a western native species of Asclepias grown for its large white flowers and long, showy narrow leaves. Easy to grow in a wide range of soils, this variety is recommended for use in the West.
Zones6 - 10
Advantages
Native
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
Mature Height24-36" tall
Mature Spread24-36" wide
Bloom TimeEarly to mid summer
ShippingNo longer available this season. Learn More…
SizeNo
SKUHC017335

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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Out of stock
SKU
HC017335
Details

California Narrow Leaf Milkweed (Asclepias fascicularis) is western native species that enhances the landscape with its huge white flower clusters and big, narrow leaves. A host plant for Monarch populations on the West Coast and Great Basin, this ornamental species is easy to grow and thrives in a wide range of growing conditions. Companion plants include other butterfly-attracting native perennials like Achillea 'Sonoma Coast' (White Yarrow), Eriogonum (Sulfur Buckwheat) and Appleblossom Grass (Gaura).

More Information
Associated SKUsHC017335
Common Name
California Narrow Leaf Milkweed
Botanical Name
Asclepias fascicularis
Zones
6, 7, 8, 9, 10
Light Requirements
Full Sun
Flower Color
White
Mature Height
24-36" tall
Mature Spread
24-36" wide
Bloom Time
Early to mid summer
Ships As
Potted Plant
Soil Type
Sandy Soil, Clay Soil, Average Soil
Soil Moisture
Average
Amount Of Rain
10 to 20"
Advantages
Native
Ideal Region
West, Southwest, Pacific Northwest, Coastal California
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Native To
North America
Ships To Canada
No
Planting Guides

View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
Shipping

No longer available this season.

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