What plant hardiness zone is Gressoney-Saint-Jean

Gressoney-Saint-Jean is located at Aosta Valley (Valle d'Aosta), Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Gressoney-Saint-Jean is 5b by the USDA scale.

Coldest zone's winter temperature is −26.1 … −23.3 °C.

Plants of 5b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 5b USDA.

Alternative climatic zone of gardening for Gressoney-Saint-Jean by UK RHS scale is H7.

Plants of H7 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H7 RHS.

Gressoney-Saint-Jean @ wikipedia.

* The lowest temperature in Gressoney-Saint-Jean was -23.7 °C on 27/02/2018.