What plant hardiness zone is Colle di Val d'Elsa

Colle di Val d'Elsa is located at Siena, Tuscany (Toscana), Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Colle di Val d'Elsa is 8b by the USDA scale.

Coldest zone's winter temperature is −9.4 … −6.7 °C.

Plants of 8b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 8b USDA.

Alternative climatic zone of gardening for Colle di Val d'Elsa 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.

Colle di Val d'Elsa @ wikipedia.

* The lowest temperature in Colle di Val d'Elsa was -8.3 °C on 28/02/2018.