The dominant commercial table grape worldwide and the basis of most sultana raisin production.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 7–11 | −17.8 °C to 10 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H5 | −15 °C to −10 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 7–9 | −12 °C and warmer | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 3–7 | −5 °C and warmer | Plant tolerates down to this zone |
Growing notes
- Heat-loving — full sun on the canes is essential for sweetness
- Annual hard pruning is essential for fruit quality
Pet caution: Grape — Thompson Seedless (Sultana) 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 Grape — Thompson Seedless (Sultana) against your zones