Rush milkweed
Asclepias subulata
Last reviewed: July 2026
Light
full sun
Water
low
Size
24"–48" H × 18"–30" W
Bloom
Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
Native to
AZ, CA, NV, UT and 2 more states
Pollinators
bees, butterflies
Browse plants for this ecoregion
A striking leafless perennial forming a dense cluster of slender, upright pale green stems that photosynthesize in place of foliage. Small clusters of creamy-yellow flowers appear at the stem tips through much of the warm season, followed by narrow seed pods. The sculptural, rush-like form stays tidy and works well as a low-water accent in gravel or rock plantings.
In an HOA neighborhood
Rush milkweed is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
Host plant for Monarch, Queen.
An important larval host for monarch and queen butterflies, with nectar flowers that draw bees, wasps, and butterflies over a long bloom season.
Common questions
- How much sun does Rush milkweed need?
- Rush milkweed grows best in full sun conditions.
- When does Rush milkweed bloom?
- Rush milkweed blooms in March, April, May, June, July, August, September, and October.
- Where is Rush milkweed native?
- Rush milkweed (Asclepias subulata) is native to AZ, CA, NV, UT and 2 more states, per the USDA PLANTS Database and regional native plant society lists.
- What butterflies or moths does Rush milkweed host?
- Rush milkweed is a larval host plant for Monarch and Queen.
- Is Rush milkweed HOA-friendly?
- Rush milkweed is generally an HOA-friendly choice in the right placement, with low maintenance.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Rush milkweed fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.