Tropical Asian and African scrambling subshrub with thin glossy leaves and small pure-white phlox-like flowers throughout warm months. The traditional Sri Lankan and Indian medicinal "Ceylon leadwort".
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 9–12 | −6.7 °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 4–7 | 0 °C and warmer | Plant tolerates down to this zone |
Growing notes
- Native to tropical Asia, Africa, and Australia
- Distinct from Cape leadwort Plumbago auriculata (also in this batch §1) — white plumbago has white flowers and a more tropical natural range
- WARNING: All parts can cause skin irritation in sensitive people — wear gloves when handling
- Drought tolerant once established
- 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.
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Related plants
Cross-check White plumbago against your zones