What plant hardiness zone is Hartheim am Rhein

Hartheim am Rhein is located at Breisgau-Hochschwarzwald, Baden-Württemberg (BW), Germany.

Plant hardiness zone (winter frost zone or gardening zone) for Hartheim 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 Hartheim 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.

Hartheim am Rhein @ wikipedia.

* The lowest temperature in Hartheim am Rhein was -18.1 °C on 05/02/2012.