What plant hardiness zone is Helfaut

Helfaut is located at Pas-de-Calais, Hauts-de-France (HDF), France.

Plant hardiness zone (winter frost zone or gardening zone) for Helfaut is 7b by the USDA scale.

Coldest zone's winter temperature is −15 … −12.2 °C.

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

Alternative climatic zone of gardening for Helfaut by UK RHS scale is H5.

Plants of H5 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H5 RHS.

Helfaut @ wikipedia.

* The lowest temperature in Helfaut was -12.3 °C on 04/02/2012.