Mariosousa willardiana
Light: Full sun; tolerates light shade but develops best form with ample sunlight.
Water: Low water once established; water deeply and allow soil to dry between irrigations. Provide occasional supplemental summer water in Phoenix and more regular irrigation during establishment.
Soil: Well-drained sandy, gravelly, or rocky soil; tolerates alkaline soil. Avoid persistently wet or poorly drained sites.
Mature size: 15–25 feet tall and 10–15 feet wide.
Bloom: Primarily spring, sometimes extending into early summer.
Evergreen / deciduous: Semi-evergreen; may shed foliage during drought or cold weather.
Growth rate: Moderate; faster with appropriate supplemental irrigation.