What plant hardiness zone is Tréguier

Tréguier is located at Côtes-d'Armor, Bretagne (BRE), France.

Plant hardiness zone (winter frost zone or gardening zone) for Tréguier is 9a by the USDA scale.

Coldest zone's winter temperature is −6.7 … −3.9 °C.

Plants of 9a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 9a USDA.

Alternative climatic zone of gardening for Tréguier by UK RHS scale is H4.

Plants of H4 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H4 RHS.

Tréguier @ wikipedia.

* The lowest temperature in Tréguier was -6.6 °C on 28/02/2018.