Royal poinciana (Flame tree)

Delonix regia

Large tropical tree producing spectacular orange-red flower clusters across the entire canopy in summer. Madagascan origin; widely planted across the tropics.

Hardiness ratings

Royal poinciana (Flame tree) hardiness across the four zone systems
SystemRatingTemperature rangeHow to read it
USDA hardiness zone Zone 10–12 −1.1 °C to 15.6 °C Plant tolerates down to this zone
RHS hardiness rating H2 1 °C to 5 °C Plant needs at least this level of cold tolerance
Canadian plant hardiness zone Zone 9 −1 °C and warmer Plant tolerates down to this zone
Australian (ANBG) zone Zone 6–7 10 °C and warmer Plant tolerates down to this zone

Growing notes

  • Deciduous in pronounced dry seasons; tropical foliage when watered
  • Slow to establish but spectacular at maturity (15+ years)
  • Wide spreading canopy needs significant space — not for small gardens

Categories

Related plants

Cross-check Royal poinciana (Flame tree) against your zones

Reference

Royal poinciana (Flame tree) on Wikipedia