Yucca Constricta
Yucca Constricta
🌱 Planting Installation
Buckley's Yucca (Yucca constricta), also known as Constricted Yucca, is an architectural evergreen succulent native to the rocky limestone hills, plains, and arid grasslands of central and western Texas and northern Mexico. Forming a low-growing, neat rosette eighteen to thirty inches tall and wide, it features narrow, flexible, pale blue-green to glaucous leaves lined with fine, white, curling fibrous threads along their edges and tipped with sharp terminal spines. Over time, it slowly produces underground rhizomes to form small, striking multi-rosette colonies.
In late spring to early summer, Buckley's Yucca sends up a dramatic, erect flower stalk reaching five to eight feet high, topped with a dense cluster of pendulous, bell-shaped greenish-white flowers. Hardy in USDA Zones 6b through 10b, it is exceptionally drought-tolerant and thrives in full sun and porous, sharply drained sandy, gravelly, or limestone soils. Its tough, spiky foliage naturally deters deer and rabbits, making it an essential focal point for Southwestern xeriscapes, rock gardens, and low-water native plantings.
| Scientific Name | Salvia rosmarinus 'Prostratus' (syn. Rosmarinus officinalis 'Prostratus' / Creeping Rosemary) |
| Foliage: Evergreen |
Low-growing, trailing, woody evergreen subshrub forming a dense ground-hugging mat that cascades gracefully over walls and edges. Leaves: Small, narrow, needle-like, dark green leaves with rolled edges and pale silver-white pubesence underneath; rich in essential oils, releasing a pungent pine-herbal fragrance when touched. Flowers: Abundant, two-lipped, pale pale-blue to lavender-blue blossoms borne in clusters along the stems; blooms heavily in late winter to spring, with periodic repeat blooms through summer and fall. Fruit: Inconspicuous, small, dry four-part nutlets held within persistent calyxes. Seeds: Four tiny brown-to-black nutlets per flower. Bark: Soft, green square young stems aging into twisted, fibrous, woody, grayish-brown stems at the core. |
| Life Span: Perennial | 10–25+ years |
| Mature Height | 0.5–1 ft (6–12 in) |
| Mature Width (Spread) | 4–8 ft |
| Growth Rate | Moderate to Fast |
| USDA Zone / Chill Hours | Zones 8a–11b (Root-hardy down to 10°F to 15°F); No chill hours required |
PLANT CARE & CHARACTERISTICS
Light Requirements: Full Sun (Requires 6+ hours of direct sunlight daily for dense foliage matting and optimal aromatic oil production).
Water Requirements: Low; requires minimal supplemental watering once established
Drought Resistance: Exceptional (Thrives in hot, dry, Mediterranean-style climates and dry rock garden walls).
Soil Type: Highly adaptable; prefers dry to medium, sandy, gravelly, or limestone soils; pH 6.0–8.0; strictly requires sharp, rapid drainage to prevent root rot.
Deer Resistance: Very High (Pungent resinous oils and aromatic foliage deter deer, rabbits, and livestock).
Pest / Disease Resistance: Exceptional resistance to pests; main threat is powdery mildew or root rot in humid, shaded, or waterlogged conditions.
Pollination: Insect-pollinated; flowers are exceptionally attractive to honeybees, native bees, and butterflies.
Harvest: Harvest fresh trailing sprigs year-round; ideal for culinary use in roasts, marinades, and oil infusions.
Storage / Shelf Life: Fresh sprigs keep 1–2 weeks refrigerated; leaves can be dried or frozen in olive oil for long-term storage (1+ year).
Pruning: Prune light trailing ends after main spring flowering to encourage dense growth and manage spread. Avoid cutting hard back into old, leafless woody stems.
