PL. —Baccharis pilularisBotanical illustration — drop image

Baccharis pilularis

Coyote Brush

SpringSummerFallWinter

7a–10bHardiness zone

Peak bloom windowZone 6b · frost-offset weeks

Winter

Peak bloom

Spring

Not in bloom

Summer

Not in bloom

Fall

Not in bloom

Peak bloom

In bloom

Peak bloom windowZone 6b · frost-offset weeks

Winter

Peak bloom

Spring

Not in bloom

Summer

Not in bloom

Fall

Not in bloom

Peak bloom

In bloom

Background

Baccharis pilularis is an evergreen native shrub of coastal scrub and chaparral, ranging from Oregon to Baja California. It grows in two distinct forms: a low spreading groundcover under 2 ft (subsp. pilularis) and an upright shrub reaching 4–9 ft (subsp. consanguinea). Both deliver long-season structure in dry, low-water gardens where most ornamentals struggle.

Plant from container stock in fall so roots establish during cool, wet months before summer drought arrives. Once established, the plant requires little to no supplemental irrigation. It is dioecious — male plants stay compact and tidy year-round, while females produce cottony white seed clusters in fall that spread readily. Most gardeners choose male cultivars such as 'Pigeon Point' (low, spreading) or 'Twin Peaks' (compact mounding) to prevent volunteer seedlings. Avoid heavy clay and do not overwater; root rot in poorly drained soil is the primary cause of plant failure. A light mulch over the root zone helps in the first season, but keep it away from the crown.

Coyote brush is a pioneer species that colonizes disturbed ground rapidly and binds slopes against erosion. It supports a documented diversity of native bees among the highest recorded for any California native shrub, and its dense stems provide nesting cover for birds and small mammals. Its comparatively low resin content makes it less flammable than many chaparral associates, and it is a standard choice in fire-adapted landscape design for the West Coast.

Good companions

California Buckwheat California Lilac Coffeeberry Deergrass

Care guide

SunFull sun

WaterLow

SoilWell-drained, dry, sandy or rocky, lean

Spacing4–8 ft

Height1–9 ft

Zone7a – 10b

Native RegionCA, OR, WA

Frost hardy

Seasonal tasks

winter

watchCheck for wilting or yellowing despite adequate soil moisture — early signs of phytophthora root rot from overwatering or waterlogged conditions.

spring

cutRemove frost-damaged or crossing stems in late winter before new growth resumes; avoid cutting back into bare, leafless old wood.

cutShape or reduce overgrown plants in early spring before growth accelerates; annual light pruning prevents legginess.

summer

watchWithhold irrigation through summer on established plants; water only if sustained temperatures above 100°F cause visible wilt.

fall

sowPlant container-grown stock in fall when temperatures cool and seasonal rains return; water in thoroughly, then rely on rainfall through winter.

cutTip-prune new growth in the first fall after planting to encourage branching and a denser habit before winter.

watchOn female plants, remove cottony seed heads before they fully open to limit unwanted seedlings in surrounding beds.

Common problems

Phytophthora Root Rot

Symptoms

Wilting despite moist soil, yellowing leaves, stunted growth, and dark, decayed roots and crown tissue. Vines may collapse during hot weather.

Treatment

Plant in well-draining soil and avoid waterlogging. Remove and destroy affected vines. Improve drainage with raised beds or amended soil and avoid overwatering.

Powdery mildew

Symptoms

White or grey powdery coating on leaves — usually starting on older growth in humid conditions or when nights cool.

Treatment

Improve air circulation by thinning plants. Apply neem oil or potassium bicarbonate spray at first sign. Avoid overhead watering.