Spreading deciduous tree from the Caspian region with leaves that turn through every shade of yellow, orange, red and purple in autumn over an unusually long period. The bark is also strikingly mottled.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 4–8 | −34.4 °C to −6.7 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H6 | −20 °C to −15 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 4–8 | −29 °C to −1 °C | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 2–5 | −10 °C to 10 °C | Plant tolerates down to this zone |
Growing notes
- Autumn colour develops over an unusually long period — October into November in temperate Northern Hemisphere gardens
- Tiny dark red filament flowers appear on bare branches in February — secondary late-winter interest
- Mottled flaking bark provides year-round structural interest
- Slow growing, eventually a wide-spreading specimen tree
Categories
Related plants
Cross-check Persian ironwood against your zones