Low evergreen ground cover with finely divided foliage. Roots carry berberine — the same antimicrobial alkaloid as endangered goldenseal — and are a more sustainable cultivated source.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 5–8 | −28.9 °C to −6.7 °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 5–8 | −23 °C to −1 °C | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 1–4 | −15 °C to 5 °C | Plant tolerates down to this zone |
Growing notes
- A practical alternative to goldenseal (Hydrastis canadensis) for berberine — both contain the same active compound
- Berberine has multiple drug interactions including diabetes medications and immunosuppressants
- Always consult a qualified medical or herbal practitioner before using any plant medicinally
Categories
Related plants
Cross-check Coptis (Chinese goldthread) against your zones