What plant hardiness zone is Sankt Anna am Aigen

Sankt Anna am Aigen is located at Südoststeiermark, Styria (Steiermark) (STM), Austria.

Plant hardiness zone (winter frost zone or gardening zone) for Sankt Anna am Aigen 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 Sankt Anna am Aigen 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 Anna am Aigen @ wikipedia.

* The lowest temperature in Sankt Anna am Aigen was -20.4 °C on 08/02/2012.