Hesperoyucca whipplei, Chaparral Yucca

Chaparral Yucca is a bold architectural accent plant known for its dramatic presence year-round and a spectacular flowering display. It forms a dense rosette of rigid silver-blue blades, 2 feet tall by 3–4 feet wide. Each blade has a VERY SHARP tip and careful thought should be given to its placement to avoid injury.

Plants can take 3 to 15 years to bloom, at which time it produces impressive stalks rising 6 to 10 feet or more above the rosette. 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. 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.

When planted in the right conditions, it provides a bold accent in native gardens, particularly when combined with rocks or other drought-adapted plants. It is well-adapted to rocky, dry soils and plays an important ecological role in its native habitat. Best with good drainage in full sun to light shade. No water once established. Deer resistant.

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.