What plant hardiness zone is San Quirico d'Orcia

San Quirico d'Orcia is located at Siena, Tuscany (Toscana), Italy.

Plant hardiness zone (winter frost zone or gardening zone) for San Quirico d'Orcia 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 San Quirico d'Orcia 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.

San Quirico d'Orcia @ wikipedia.

* The lowest temperature in San Quirico d'Orcia was -9.3 °C on 28/02/2018.