What plant hardiness zone is Schlatt-Haslen

Schlatt-Haslen is located at Schlatt-Haslen, Appenzell Innerrhoden (Inner-Rhodes) (AI), Switzerland.

Plant hardiness zone (winter frost zone or gardening zone) for Schlatt-Haslen 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 Schlatt-Haslen 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.

Schlatt-Haslen @ wikipedia.

* The lowest temperature in Schlatt-Haslen was -20.3 °C on 06/02/2012.