What plant hardiness zone is Stein am Rhein

Stein am Rhein is located at Stein, Schaffhausen (Schaffhouse) (SH), Switzerland.

Plant hardiness zone (winter frost zone or gardening zone) for Stein am Rhein 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 Stein am Rhein 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.

Stein am Rhein @ wikipedia.

* The lowest temperature in Stein am Rhein was -19.4 °C on 04/02/2012.