What plant hardiness zone is Seewis im Prättigau

Seewis im Prättigau is located at Prättigau (Davos), Graubünden (Grisons) (GR), Switzerland.

Plant hardiness zone (winter frost zone or gardening zone) for Seewis im Prättigau 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 Seewis im Prättigau 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.

Seewis im Prättigau @ wikipedia.

* The lowest temperature in Seewis im Prättigau was -19.4 °C on 06/02/2012.