What plant hardiness zone is Sankt Gallen
Sankt Gallen is located at Liezen, Styria (Steiermark) (STM), Austria.
Plant hardiness zone (winter frost zone or gardening zone) for Sankt Gallen 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 Sankt Gallen 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.
Sankt Gallen, Styria @ wikipedia.
* The lowest temperature in Sankt Gallen was -16.4 °C on 08/02/2012.