Cooper Popcornflower
Plagiobothrys collinus
Last reviewed: June 2026
Light
full sun
Water
low
Size
4"–12" H × 4"–12" W
Bloom
Mar, Apr, May
Native to
AZ, CA
Pollinators
bees, beetles
Browse plants for this ecoregion
Cooper popcornflower is a small annual wildflower that produces clusters of tiny white flowers from March through May. This low-growing native forms a compact mound and thrives in full sun with minimal water requirements.
In an HOA neighborhood
Cooper Popcornflower 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.
- Dies back completely after blooming, leaving bare spots
- Small flowers and informal growth habit appear weedy
- Annual nature requires replanting or reseeding yearly
Wildlife value
The small flowers attract native bees and beetles during the spring blooming period. As an early-season bloomer, it provides important nectar sources when few other plants are flowering.
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 Cooper Popcornflower fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.