Leucophyllum zygophyllum
Light: Full sun; at least 6–8 hours daily promotes dense growth and abundant flowering.
Water: Low water once established. Water deeply, then let the root zone dry between irrigations. Water more regularly during establishment; reduce watering substantially in winter.
Soil: Very well-drained sandy, gravelly, or rocky soil. Tolerates alkaline desert soils; avoid soggy locations and excessive organic amendments.
Mature size: Typically 3–4 feet tall and 4–5 feet wide.
Bloom: Repeated flushes from summer into fall, often triggered by increased humidity and monsoon rain.
Evergreen / deciduous: Evergreen in Phoenix; may thin or shed some foliage during unusually cold weather or prolonged drought.
Growth rate: Moderate; slower under very dry conditions.