What plant hardiness zone is Châtillon-Saint-Jean

Châtillon-Saint-Jean is located at Drôme, Auvergne-Rhône-Alpes (ARA), France.

Plant hardiness zone (winter frost zone or gardening zone) for Châtillon-Saint-Jean 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 Châtillon-Saint-Jean 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.

Châtillon-Saint-Jean @ wikipedia.

* The lowest temperature in Châtillon-Saint-Jean was -16.7 °C on 05/02/2012.