Moderate water needs; irrigate deeply and let the upper few inches of soil dry between waterings. Water more frequently during establishment and extreme summer heat.
Clytostoma callistegioides, commonly called violet trumpet vine, is a vigorous climber with glossy foliage and lavender flowers. It is not tangerine crossvine, which usually refers to the orange-flowered Bignonia capreolata ‘Tangerine Beauty’. These details follow the supplied botanical name.
Light: Morning sun with afternoon shade is best in Phoenix; avoid intense reflected heat from west-facing walls.
Water: Moderate water needs; irrigate deeply and let the upper few inches of soil dry between waterings. Water more frequently during establishment and extreme summer heat.
Soil: Well-drained soil enriched with compost; tolerates various soil textures but struggles with prolonged saturation. Mulch the root zone, keeping mulch away from stems.
Mature size: Typically 15–25 feet tall and 10–15 feet wide with support; potentially larger in favorable conditions.
Bloom: Mainly spring through early summer, with occasional scattered flowers afterward.
Evergreen / deciduous: Evergreen in mild conditions; may become partially deciduous or suffer foliage damage during Zone 9b freezes.
Growth rate: Moderate to fast with adequate moisture and warmth.