What plant hardiness zone is Castello di Annone

Castello di Annone is located at Asti, Piedmont (Piemonte), Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Castello di Annone is 7a by the USDA scale.

Coldest zone's winter temperature is −17.8 … −15 °C.

Plants of 7a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 7a USDA.

Alternative climatic zone of gardening for Castello di Annone by UK RHS scale is H6.

Plants of H6 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H6 RHS.

Castello di Annone @ wikipedia.

* The lowest temperature in Castello di Annone was -16.2 °C on 06/02/2012.