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Deerweed

Acmispon glaber

Also listed as Syrmatium glabrum, Anisolotus glaber

Also known as Common Deerweed, California Broom, Deer Clover

shrub☀️ full sun💧 low water❄ Hardy: Zone 9a – Zone 11b

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A low, spreading native shrub with small pinnate leaves and delicate yellow flowers. Extremely drought-tolerant once established and requires minimal maintenance.

Why grow it

Acmispon glaber outperforms many ornamental ground covers in water-limited conditions, establishing quickly in poor or sandy soils where other natives struggle. It fixes nitrogen through its root nodules, improving soil fertility over time without fertilizer inputs. Its low stature and fine texture make it useful for erosion control on slopes or as a living mulch in polyculture plantings.

Watch out for

Growth can be slow in the first season while the root system establishes; supplemental water during this period yields better results than relying on summer drought tolerance from the start. In very humid or poorly drained sites, the plant is prone to fungal issues, so ensure good air circulation and avoid overhead watering.

Overview

Form
Spreading
Growth Rate
moderate
Size
1–3′ tall × 2–4′ wide
Dormancy
evergreen
Family
Fabaceae
erosion controlpollinator nectarywildlife benefit

Native to the United States

Native Range

California native

Native to: Arizona, California

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SpringSummer

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Companion Planting

Plants well with