What plant hardiness zone is Oleggio Castello

Oleggio Castello is located at Novara, Piedmont (Piemonte), Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Oleggio Castello is 6b by the USDA scale.

Coldest zone's winter temperature is −20.6 … −17.8 °C.

Plants of 6b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6b USDA.

Alternative climatic zone of gardening for Oleggio Castello 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.

Oleggio Castello @ wikipedia.

* The lowest temperature in Oleggio Castello was -19 °C on 06/02/2012.