What plant hardiness zone is Ober-Grafendorf

Ober-Grafendorf is located at Sankt Pölten-Land, Lower Austria (Niederösterreich), NÖ, Austria.

Plant hardiness zone (winter frost zone or gardening zone) for Ober-Grafendorf 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 Ober-Grafendorf 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.

Ober-Grafendorf @ wikipedia.

* The lowest temperature in Ober-Grafendorf was -18.3 °C on 12/02/2012.