Hairy Gumweed
Grindelia camporum
Last reviewed: July 2026
Grindelia camporum (Hairy Gumweed) is a California native forb that blooms yellow flowers from June through September in full sun with low water needs.
Hairy Gumweed (Grindelia camporum) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
12"–36" H × 12"–24" W
Bloom
Jun, Jul, Aug, Sep
Native to
CA
Pollinators
bees, butterflies
Browse plants for this ecoregion
Grindelia camporum is a cheerful native perennial with bright yellow daisy-like flowers that bloom throughout summer and into fall. Its foliage is a gray-green with a sticky, resinous coating that gives it the common name 'gumweed'. This drought-tolerant plant forms a rounded shape with semi-woody stems.
Growing Hairy Gumweed
Grow Hairy Gumweed in full sun and low water. Mature plants reach 12 to 36 inches tall and spread 12 to 24 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Hairy Gumweed is an HOA-friendly choice in the right placement. Maintenance level: moderate. Tidiness: 3 out of 5.
Works well in: foundation, mid zone.
- May appear somewhat scrubby or informal for traditional HOA landscapes
- Sticky foliage can collect debris
- Needs deadheading to maintain neat appearance after flowering
Wildlife value
Hairy gumweed provides significant ecological value by attracting numerous native bees and butterflies with its abundant nectar. The flowers are particularly attractive to specialist pollinators in late summer when other blooms may be scarce.
Common questions
- When does Grindelia camporum bloom?
- Hairy Gumweed blooms from June through September, producing bright yellow daisy-like flowers.
- What pollinators visit Grindelia camporum?
- Hairy Gumweed attracts bees and butterflies with its nectar-rich yellow flowers during the summer and early fall blooming period.
- What growing conditions does Grindelia camporum prefer?
- This California native thrives in full sun locations with low water requirements, making it well-suited for drought-tolerant gardens.
- Is Hairy Gumweed toxic to dogs?
- Hairy Gumweed is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
- Is Hairy Gumweed toxic to cats?
- Hairy Gumweed is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
- Is Hairy Gumweed HOA-friendly?
- Hairy Gumweed is generally an HOA-friendly choice in the right placement, with moderate 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.
Ready to grow Hairy Gumweed? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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