Irish strawberry tree (Arbutus unedo) – hardiness zones in USDA, RHS, Canadian & Australian systems

Hardy Mediterranean evergreen with red, strawberry-textured fruit and white autumn flowers.

Hardiness ratings

Irish strawberry tree hardiness across the four zone systems
System	Rating	Temperature range	How to read it
USDA hardiness zone	Zone 7–10	−17.8 °C to 4.4 °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 7–8	−12 °C to −1 °C	Plant tolerates down to this zone
Australian (ANBG) zone	Zone 2–6	−10 °C to 15 °C	Plant tolerates down to this zone

Red, strawberry-textured fruit eaten fresh or made into jam and liqueur — bland but sweet when fully ripe
Carries white flowers and red fruit at the same time; drought-tolerant once established
Tolerates coastal exposure and poor soils