Tropical American twining climber with glossy dark green leaves and large trumpet flowers in pink, red, or white throughout warm months. The standard summer container climber and tropical patio plant.
Hardiness ratings
| System | Rating | Temperature range | How 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 | H1c | 5 °C to 10 °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 4–7 | 0 °C and warmer | Plant tolerates down to this zone |
Growing notes
- Plant in summer containers and as a permanent climber in tropical and subtropical gardens — flowers continuously in warm humid conditions
- Strong hummingbird forage in its native range — flowers tubular and brightly coloured
- Frost-tender — overwinter under glass or treat as warm-season annual outside zone 10
- Stems exude milky sap when cut — irritant to skin in sensitive people
- Not reliably hardy outdoors in Canada — Canadian zone values shown represent the system maximum and do not imply garden cultivation north of the warmest coastal pockets.
Pet caution: Mandevilla is listed as potentially harmful to cats and/or dogs. Keep pets from grazing on it, and contact a vet if you suspect your animal has eaten some.
Categories
Related plants
Cross-check Mandevilla against your zones