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Hairy gumplant

Grindelia hirsutula

perennial herbView on Calscape
Care
Sun

full sun

Water

very low

Soil

Fast, Medium, Slow

Size

1–2ft tall

Bloom

Jun-Nov

Deer

Resistant

Container

Friendly

Flowers

Prized

Native Range

Coastal bluffs and scrub from Santa Cruz County to San Luis Obispo County, below 1500 ft elevation.

Care Guide

Planting

Plant your hairy gumplant in full sun with fast-draining soil - it's extremely drought-tolerant once established and won't tolerate wet feet. This Bay Area native thrives in poor, well-drained conditions and can handle fast, medium, or slow draining soils as long as drainage is good. Space plants 1–2 feet apart, and you can plant year-round in the Bay Area, though fall and early spring give the best establishment window.

After Planting

Water weekly during your plant's first summer to establish deep roots, then dramatically reduce watering - this plant needs very low water once established and is even tolerant of recycled water. Expect red or purplish-brown stems and golden yellow flowers from June through November. The biggest mistake Bay Area gardeners make is overwatering; treat this as a drought plant from year two onward and only water during extended dry spells.

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Endangered & Threatened Species Supported
Monarch butterflyDanaus plexippus

California Species of Special Concern; monarch populations declining

CA Special Concern
Wildlife Supported

Insects

Nectar · Fall

Critical fall migration fuel source during southbound migration (Aug-Oct)

Larval Host · Year-Round

Confirmed host plant for caterpillar development; multiple generations

Larval Host · Year-Round

Specialist herbivore; may use plant year-round in mild climates

Nectar · Year-Round

Year-round bloomer attraction; key resource during population irruptions

Nectar · Year-Round

Resident and migratory populations; consistent nectar source

Nectar · Summer

Peak use during mid-summer flight period

Larval Host · Year-Round

Caterpillar feeds on reproductive structures

Larval Host · Year-Round

Forms galls on stem and flower tissues; multi-generational

+1 more species

Where to Buy
Oaktown Native Plant Nursery

702 Channing Way, Berkeley

Wed-Sun 10am-5pm

1.0 mi(510) 387-9744WebsiteDirections
East Bay Wilds

2110 Eighth St, Suite 202, Berkeley

Fri 9:30am-4pm (occasional Sat, call ahead)

1.5 mi(510) 409-5858WebsiteDirections
Native Here Nursery

101 Golf Course Dr, Tilden Regional Park, Berkeley

Sat 10am-2pm

3.0 mi(510) 549-0211WebsiteDirections
Watershed Nursery

601A Canal Blvd, Richmond

Tue-Sun 10am-4pm

5.0 mi(510) 234-2222WebsiteDirections
Grassroots Ecology

3921 E Bayshore Rd (Foothills Nature Preserve), Palo Alto

Online orders only ($50 min); pickup daily 8am-sunset