What plant hardiness zone is Illnau-Effretikon

Illnau-Effretikon is located at Pfäffikon, Zürich (Zurich) (ZH), Switzerland.

Plant hardiness zone (winter frost zone or gardening zone) for Illnau-Effretikon 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 Illnau-Effretikon 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.

Illnau-Effretikon @ wikipedia.

* The lowest temperature in Illnau-Effretikon was -19.1 °C on 04/02/2012.