What plant hardiness zone is Castelletto Monferrato

Castelletto Monferrato is located at Alessandria, Piedmont (Piemonte), Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Castelletto Monferrato 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 Castelletto Monferrato 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.

Castelletto Monferrato @ wikipedia.

* The lowest temperature in Castelletto Monferrato was -15.4 °C on 06/02/2012.