SCIENTIFIC NAME: Yucca rigida 'Blue Sentry'

COMMON NAME: Blue Sentry Yucca

GARDEN SIZE: 4-5 ft. tall in cool climates; 6+ ft. in hot climates; 4-5 ft. wide

GROWTH RATE: Slow to Moderate

USDA ZONE: 5 to 9

EXPOSURE: Full Sun

WATER & SOIL: These desert-adapted species require gritty, sandy, or rocky soils with excellent drainage. They prefer dry conditions and minimal watering once established, as excess moisture—especially in winter—can lead to rot.

HABIT (FORM): Upright, columnar with age; mounding when young

FOLIAGE: Evergreen, sword-shaped silvery blue leaves with thin yellow margins

FLOWERS: Medium-sized (1–2 in.), creamy white, bell-shaped flowers on 4–6 ft. tall stalks in early to mid-summer

PLANT ORIGIN: Found in northern Mexico

WILDLIFE SUPPORT: May provide some nesting sites and shelter for birds and small mammals, but does not serve as much of a host for local insects and wildlife. May provide food for insects in the spring.

FERTILIZING: These species thrive in lean soils and rarely need supplemental fertilizer. If desired, use a light application of cactus or succulent fertilizer in spring to encourage healthy growth.

PRUNING: Very low-maintenance. Remove spent flower stalks and any dead or damaged leaves as needed, typically in late winter or early spring. Trunk-forming species may have dead leaves trimmed for a cleaner appearance.

TOXICITY: Generally considered mildy to moderately toxic to humans and pets.

USES: Excellent as architectural accents, borders, or container specimens. Ideal for xeriscaping, rock gardens, and pollinator-friendly landscapes, with striking blooms and bold evergreen foliage that provide year-round interest.