Compact woody Mediterranean herb with deep blue flower spikes and pungent leaves. Underused in modern gardens.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 3–9 | −40 °C to −1.1 °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 1–5 | −15 °C to 10 °C | Plant tolerates down to this zone |
Growing notes
- Strong bee plant — among the best-loved by honeybees of any temperate herb
- Tolerates poor dry soils; needs full sun
- Always consult a qualified medical or herbal practitioner before medicinal use.
Categories
Related plants
Cross-check Hyssop against your zones