Heritage perennial root vegetable with black-skinned, white-fleshed roots resembling slim parsnips. Once a winter staple, now near-extinct in cultivation.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 3–10 | −40 °C to 4.4 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H7 | down to −20 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 3–9 | −34 °C and warmer | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 1–6 | −15 °C to 15 °C | Plant tolerates down to this zone |
Growing notes
- Sap stains hands black — peel under running water
- Treat as a slow biennial: lift roots in their second autumn for best size
Categories
Related plants
Cross-check Scorzonera (Black salsify) against your zones