Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Chaparral yucca (Hesperoyucca whipplei)  is a striking, drought-adapted plant known for its dramatic presence year-round and spectacular flowering display. The plant begins as a large, rounded rosette of silver-green, spiky leaves. When mature — typically after 5 to 6 years — it sends up an impressive flower spike that grows 10 to 15 feet tall in just a few weeks. The towering spike is covered with hundreds of bell-shaped flowers, ranging from white to pale purple, creating a stunning visual impact in the landscape.

Native to California and parts of Baja California, chaparral yucca thrives in chaparral, coastal sage scrub, and oak woodland plant communities at elevations of 950 to 8,200 feet. It is well-adapted to rocky, dry soils and plays an important ecological role in its native habitat.

Chaparral yucca forms an exclusive pollinator relationship with the California Yucca Moth (Tegeticula maculata), making it a fascinating example of co-evolution. The moth is the plant's sole pollinator and relies on the yucca for its life cycle. The moth collects pollen from the flowers and deposits it on another flower’s stigma while laying its eggs inside the ovary. The developing moth larvae feed on some of the yucca seeds, while others are left to grow and disperse.

After the flowers are pollinated, the yucca plant dies, a process known as monocarpic reproduction. However, the dried flower stalk often remains standing for several years, creating a natural sculpture in the landscape. New plants emerge from seeds or from offsets at the plant’s base.

Chaparral yucca is also known by several common names, including our lord’s candle, Spanish bayonet, Quixote yucca, common yucca, and foothill yucca. Despite its beauty, it is reportedly difficult to grow outside its native range. However, when planted in the right conditions, it provides a bold accent in native gardens, particularly when combined with rocks or other drought-adapted plants. Care should be taken to place the plant away from pathways, as its sharply pointed leaves can cause injury.

This iconic plant is a resilient symbol of California’s rugged chaparral landscapes, offering both ecological value and ornamental appeal.

Plant type

Succulent

Size

2 - 12 ft Tall
2 - 3 ft Wide

Form

Fountain

Growth rate

Moderate

Dormancy

Evergreen

Fragrance

Slight

Calscape icon
Color

Purple, Pink, Cream, White

Flowering season

Spring

Special uses

Deer resistant, Groundcover

Sun

Full Sun

Water

Very Low, Low

Summer irrigation

Max 1x / month once established

Ease of care

Easy

Cold tolerance

Tolerates cold to 25° F

Soil drainage

Fast

Soil description

Prefers rocky soils.
Soil PH: 6 - 8

Maintenance

Pruning is not required; it may need to be removed, however, when it dies after flowering. If you have room, leave it to allow the Yucca moth larvae time to mature.

Propagation

Easily propagated by seed. For propagating by seed: No treatment.

Sunset Zones

1, 2, 3, 7*, 8, 9, 10, 11, 12, 14*, 15*, 16*, 17, 18*, 19*, 20*, 21*, 22*, 23*, 24

Site type

Dry slopes

Plant communities

Chaparral, Creosote Bush Scrub, Joshua Tree Woodland

Bats
Birds
Caterpillars
Butterflies

Butterflies and moths supported

1 confirmed and 6 likely

Confirmed Likely

Yucca Moth

Tegeticula maculata

Navel Orangeworm

Amyelois transitella

Holcocera iceryaeella

Yucca Giant-Skipper

Megathymus yuccae