Retama

Scientific Name: Parkinsonia aculeata
Common Names: Mexican Palo Verde, Jerusalem Thorn, Horse Bean
Native to: Tropical and subtropical regions of the Americas
Lighting Requirements: Full sun
Height: 15–30 feet (usually just 15' tall in Central Texas)
Width: 10–20 feet
Winter Look: Deciduous; bare branches with a unique, sculptural form
Seasonal Interest: Spring and summer blooms; bright yellow flowers with orange streaks
Drought Tolerance: High
Soil Requirements: Well-drained soils, sandy or rocky
pH Range: 6.0–8.0 (slightly acidic to alkaline)
Hardiness Zones: USDA Zones 8–11
Deer Resistance: Moderate; thorny branches deter some browsing
Attracts: Pollinators (bees, butterflies), birds
Potential Issues: May develop root rot in poorly drained soil; susceptible to frost damage in colder climates
Notes: Retama is an excellent choice for xeriscaping and erosion control. It needs minimal maintenance once established.