Ruellia peninsularis
Light: Full sun to light shade; tolerates reflected heat, though light afternoon shade can help in especially hot locations.
Water: Low water once established; water deeply, then let soil dry between irrigations. Occasional supplemental summer watering supports fuller growth and more flowers.
Soil: Well-drained sandy, gravelly, or loamy soil; tolerates alkaline desert soils but dislikes persistently wet roots.
Mature size: 3–5 feet tall and 4–5 feet wide.
Bloom: Primarily spring through fall, with intermittent flowering during warm winter weather.
Evergreen / deciduous: Evergreen in mild winters; may lose leaves or suffer stem dieback during freezing weather.
Growth rate: Moderate to fast with supplemental irrigation.