Coyotebrush

Baccharis pilularis

Native to:
Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Baccharis
Species:
Baccharis pilularis
USDA Symbol:
BAPI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Subshrub
Height:
400 cm
Light Requirements:
Full Sun,Part Shade
Drought Tolerance:
High
Bloom Months:
aug,sep,oct,nov
Bloom Colors:
white, cream
Ground Cover:
Yes
Lawn Substitute:
Yes
Evergreen Shrub:
Yes
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★★★☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Butterfly & moth species supported by this genus (NWF)
Pollen Specialist Bee Keystone:
★★★☆☆ Native pollen specialist bee species supported by this genus (NWF)

Host Plant for Caterpillars

Aristotelia argentifera, Bucculatrix dominatrix, Bucculatrix separabilis, Bucculatrix sp. n., Bucculatrix variabilis, California phantom (Phymatopus californicus), Coleophora lynosyridella, Coleophora sp. D, Coleophora viscidiflorella, Coleotechnites bacchariella, Cremastobombycia solidaginis, Eucosma williamsi, Eupithecia misturata, Gnorimoschema baccharisella, Itame varadaria, Oidaematophorus confusus, Oidaematophorus grandis, Omnivorous Leafroller (Platynota stultana), orange tortrix moth (Argyrotaenia citrana), orange tortrix moth (Argyrotaenia franciscana), Phymatopus hectoides, Prochoerodes truxaliata, Saphenista saxicolana

Reported Fauna Sightings

Bees: ⚠️Western honey bee (Apis mellifera) Moths:Gnorimoschema baccharisella Butterflies:Fiery Skipper (Hylephila phyleus), Gray Buckeye (Junonia grisea), Gray Hairstreak (Strymon melinus), Icaricia acmon, Painted Lady (Vanessa cardui), Tharsalea helloides

Garden & Ecology Notes

Wildlife Value:
birds, butterflies, native bees, beneficial insects
Deer Resistant:
Yes
Salt Tolerant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from root crown after fire. Important component of coastal scrub fire ecology, providing quick post-fire erosion control.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
thrives in coastal scrub and chaparral environments

Propagation & Germination

Stratification:
None required
Germination Time:
14–30 days
Notes:
Seeds germinate readily without treatment. Light may enhance germination. Vegetative propagation via cuttings is more reliable.

The above propagation data sourced from Claude AI

Pre-treatment: Dip cut end in 1:20 solution of Wood's brand rooting hormone recommended for herbaceous cuttings. Alternatively, cuttings can be dipped in a mild bleach solution for 30 seconds and treated with Hormex (3000 ppm IBA) rooting powder.

Establishment: There is a variation in the pre-treatment and establishment protocols between the three protocols. The source of propagation can also be from seeds as per Protocol 2, but cuttings were preferred due to higher germination rates. The collection of cuttings and seeds also varies with the time of the year.

Source: npn.rngr.net