What plant hardiness zone is Sankt Marein bei Graz

Sankt Marein bei Graz is located at Graz-Umgebung, Styria (Steiermark) (STM), Austria.

Plant hardiness zone (winter frost zone or gardening zone) for Sankt Marein bei Graz is 6a by the USDA scale.

Coldest zone's winter temperature is −23.3 … −20.6 °C.

Plants of 6a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6a USDA.

Alternative climatic zone of gardening for Sankt Marein bei Graz by UK RHS scale is H7.

Plants of H7 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H7 RHS.

Sankt Marein bei Graz @ wikipedia.

* The lowest temperature in Sankt Marein bei Graz was -21.4 °C on 08/02/2012.