Chamise

Planting

Plant chamise in full sun in a location with fast-draining soil - it tolerates sand, clay, and various soil types, so drainage matters more than soil composition. Space plants according to your desired mature size (3–13 feet), keeping in mind that chamise develops deep, wide-spreading roots excellent for slope stabilization. Plant in fall or early winter to let roots establish before the dry season.

After Planting

Water weekly during your first summer, then transition to no more than twice monthly once established - this plant is exceptionally drought-tolerant once its deep root system develops. The #1 mistake is overwatering: chamise evolved in chaparral conditions and actually becomes MORE fire-resistant with occasional watering rather than regular irrigation, so err on the side of dry. You can prune after flowering (spring through early summer) or after the first year to shape it, and the plant will resprout vigorously from its basal burl if cut back hard.

Insects

criEglanterine silk moth

Larval Host · Year-Round

Larvae feed on chamise foliage April-June; primary host plant

criElectra moth

Larval Host · Year-Round

Larvae overwinter feeding on chamise foliage; emerge spring

higBrown Elfin

Larval Host · Spring

Early spring larvae feed on new growth; critical for early season emergence

higChalcedon Checkerspot

Larval Host · Year-Round

Caterpillars feed on chamise leaves; adults emerge mid-summer

higHoney bee

Pollen · Year-Round

Important nectar and pollen source; evergreen flowering throughout year

modCherry-leaved Andrena

Pollen · Spring

Specialist bee collecting pollen for larval provisions spring season

modGreat Basin tent caterpillar

Larval Host · Spring

Larvae feed on young foliage March-May; form silken tents

Birds

higAnna's Hummingbird

Shelter · Year-Round

Dense foliage provides nesting and roosting sites year-round; critical winter shelter

higLesser Goldfinch

Seeds · Year-Round

Primary seed source, particularly important in late summer-fall when seeds mature

modBaird's Sparrow

Shelter · Winter

Uses dense chamise for winter cover and foraging in chaparral habitat

Mammals

higCalifornia mouse

Seeds · Year-Round

Harvests and caches seeds; critical food source September-March