What plant hardiness zone is Porto Venere

Porto Venere is located at La Spezia, Liguria, Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Porto Venere is 9a by the USDA scale.

Coldest zone's winter temperature is −6.7 … −3.9 °C.

Plants of 9a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 9a USDA.

Alternative climatic zone of gardening for Porto Venere by UK RHS scale is H4.

Plants of H4 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H4 RHS.

Porto Venere @ wikipedia.

* The lowest temperature in Porto Venere was -6.4 °C on 14/02/2012.