Asthmaplant
Euphorbia hirta
Last reviewed: June 2026
Light
full sun
Water
medium
Size
4"–20" H × 4"–12" W
Bloom
Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Native to
AL, AZ, CA, FL and 9 more states
Pollinators
bees, beetles
Browse plants for this ecoregion
Asthmaplant is a small annual herb that grows as a low spreading groundcover or border plant. It produces tiny flowers from spring through fall and tolerates heat well in sunny locations. This native plant requires minimal care once established and naturally reseeds in favorable conditions.
In an HOA neighborhood
Asthmaplant takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Very informal appearance resembles a weed
- Annual lifecycle creates gaps when plants die back
- Self-seeding habit can appear untidy
Wildlife value
The long blooming period provides nectar for bees and beetles from March through November. Its small stature makes it useful for supporting pollinators in compact garden spaces.
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 Asthmaplant fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.