What plant hardiness zone is Hélécine (Heilissem; Heylissem)

Hélécine (Heilissem; Heylissem) is located at Walloon Brabant (Waals-Brabant), Wallonia, Wallonië, Belgium.

Plant hardiness zone (winter frost zone or gardening zone) for Hélécine (Heilissem; Heylissem) 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 Hélécine (Heilissem; Heylissem) 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.

Hélécine @ wikipedia.

* The lowest temperature in Hélécine (Heilissem; Heylissem) was -15.1 °C on 04/02/2012.