Campsis radicans
Light: Full sun for best flowering; light afternoon shade can reduce stress in Phoenix’s extreme summer heat. Avoid intensely reflective west-facing walls.
Water: Water deeply and regularly during establishment. Once established, allow the upper soil to dry between deep soakings; supplemental summer irrigation supports flowering in Phoenix.
Soil: Adaptable to sandy, loamy, or clay soils with adequate drainage; tolerates alkaline soil. Avoid persistently soggy conditions.
Mature size: Typically 25–40 feet tall with support and 5–10 feet wide; suckers can spread well beyond the original planting.
Bloom: Late spring through summer, sometimes into early fall; flowers on new growth. Seed-grown plants may take several years to bloom.
Evergreen / deciduous: Deciduous; generally loses its leaves in winter.
Growth rate: Fast once established, especially with irrigation.