What plant hardiness zone is Steinach

Steinach is located at Rorschach, St. Gallen (Gall) (SG), Switzerland.

Plant hardiness zone (winter frost zone or gardening zone) for Steinach 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 Steinach 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.

Steinach SG @ wikipedia.

* The lowest temperature in Steinach was -17.7 °C on 04/02/2012.