Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Creosote bush (Larrea tridentata) is an evergreen flowering shrub, prominent in the deserts of western North America. It is slow-growing, with dark green leaves and the yellow flowers blooming in spring. The whole plant exhibits a characteristic odor of creosote (especially when wet), from which the common name derives.

This plant takes full sun and is extraordinarily tolerant of drought, due to its deep root system. It prefers well-draining, rocky soil but tolerates saline or alkaline soils. It reproduces by seed and also by sending up new shoots from the roots. The latter results in the creation of clonal rings, some of which are among the oldest known plants at around 11,000 years old. Galls may form by the activity of the creosote gall midge. The plant's dramatic shape can look striking in front of a wall or other simple background. It can be pruned in late summer or early winter.

Numerous insects are attracted to the flowers. Various birds are attracted to the seeds.

Plant type

Shrub

Size

3 - 12 ft Tall
6 - 12 ft Wide

Growth rate

Moderate, Slow

Dormancy

Evergreen

Fragrance

Pleasant

Calscape icon
Color

Yellow

Flowering season

Spring

Special uses

Hedge

Sun

Full Sun

Water

Low, Very Low

Summer irrigation

Max 1x / month once established

Ease of care

Moderate

Cold tolerance

Tolerates cold to 10° F

Soil drainage

Fast

Soil description

Almost always found in rocky, sandy or gravelly soil. Tolerates saline soil.,Tolerates sodic soil..
Soil PH: 6.5 - 8.5

Maintenance

Prune to shape in late fall or early winter

Propagation

For propagating by seed: Soak, preferably in distilled water, overnight; germinate in dark under hot bed conditions (optimum temperature 73°F constant). Germination percentage may be low. Germinating seedlings intolerant of water stress [Barbour 1968; Mabry et al. 1977).

Sunset Zones

7, 8*, 9*, 10*, 11*, 12*, 13*, 14*, 18, 19*, 20*, 21*, 22, 23

Site type

Mountains, valleys, and washes of the southern California deserts

Plant communities

Creosote Bush Scrub

Caterpillars
Butterflies

Butterflies and moths supported

1 confirmed and 2 likely

Confirmed Likely

Thyridopteryx meadii

Creosote Moth

Digrammia colorata

Stenoporpia pulchella