What plant hardiness zone is St. Valentin

St. Valentin is located at Amstetten, Lower Austria (Niederösterreich), NÖ, Austria.

Plant hardiness zone (winter frost zone or gardening zone) for St. Valentin 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 St. Valentin 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 Valentin @ wikipedia.

* The lowest temperature in St. Valentin was -19.2 °C on 12/02/2012.