Narrowleaf Milkweed (Asclepias fascicularis)

Host Plant: Monarch Butterflies

Nectar Plant: numerous other butterflies and bees

Flower Color: white, pink, green, and purple

Growth Habit: herbaceous perennial that grows to 3 feet tall

Range in North America: western states of North America

Exposure: Full sun

Hardiness: Zones 6-10

Soil Requirements: well-drained soil

Mexican Whorled Milkweed

Narrowleaf milkweed (Asclepias fascicularis), a member of the Apocynaceae (Dogbane Family), is a herbaceous perennial that grows to 3 feet tall and has white, pink, green, and purple flowers that bloom in the spring, summer, and fall.

Monarch Butterfly (Danaus plexippus)

Monarch Butterfly on Goldenrod – ALAN SCHMIERER from southeast AZ, USA, CC0, via Wikimedia Commons

Many other butterflies use this plant as a nectar source.

Narrowleaf Milkweed is found in dry open areas such as plains, roadsides, and disturbed areas.  It is native to the western states of North America.

Birds can use the dead stems for nesting material.

Narrowleaf Milkweed (Asclepias fascicularis) Links


Lady Bird Johnson Wildflower Center

Bring Back the Monarchs


Butterfly Encounters

Ulistac Natural Area


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