What plant hardiness zone is Hergiswil bei Willisau

Hergiswil bei Willisau is located at Willisau, Luzern (Lucerne) (LU), Switzerland.

Plant hardiness zone (winter frost zone or gardening zone) for Hergiswil bei Willisau is 7a by the USDA scale.

Coldest zone's winter temperature is −17.8 … −15 °C.

Plants of 7a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 7a USDA.

Alternative climatic zone of gardening for Hergiswil bei Willisau 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.

Hergiswil bei Willisau @ wikipedia.

* The lowest temperature in Hergiswil bei Willisau was -17.5 °C on 05/02/2012.