What plant hardiness zone is Wildhaus-Alt St. Johann

Wildhaus-Alt St. Johann is located at Toggenburg, St. Gallen (Gall) (SG), Switzerland.

Plant hardiness zone (winter frost zone or gardening zone) for Wildhaus-Alt St. Johann 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 Wildhaus-Alt St. Johann 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.

Wildhaus-Alt St. Johann @ wikipedia.

* The lowest temperature in Wildhaus-Alt St. Johann was -19.7 °C on 06/02/2012.