What plant hardiness zone is Castelsardo

Castelsardo is located at Sassari, Sardinia (Sardegna), Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Castelsardo 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 Castelsardo 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.

Castelsardo @ wikipedia.

* The lowest temperature in Castelsardo was -4.2 °C on 15/02/2012.