The dominant commercial avocado worldwide — pebbly black-purple skin when ripe, dense buttery flesh with a high oil content.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 9–11 | −6.7 °C to 10 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H3 | −5 °C to 1 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 9 | −1 °C and warmer | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 5–7 | 5 °C and warmer | Plant tolerates down to this zone |
About Avocado — Hass
The Hass avocado is one of the most striking examples of a single tree shaping a global crop: every Hass avocado in the world descends by grafting from one seedling raised in California in the 1920s, and that original tree is documented. Avocados have an unusual flowering behaviour, with flowers opening as female and male at different times of day, so varieties are grouped into two types and crop better when both are present. The fruit does not soften on the tree — it ripens only after picking, which is why fruit can be stored on the tree for weeks.
Growing notes
- Flowers and young fruit damaged below 0 °C even when the mature tree survives
- Type-A flowering pattern — pair with a Type-B (e.g. Bacon) for best fruit set
Pet caution: Avocado — Hass 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 Avocado — Hass against your zones