What plant hardiness zone is Ottenbach

Ottenbach is located at Affoltern, Zürich (Zurich) (ZH), Switzerland.

Plant hardiness zone (winter frost zone or gardening zone) for Ottenbach 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 Ottenbach 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.

Ottenbach ZH @ wikipedia.

* The lowest temperature in Ottenbach was -19.3 °C on 04/02/2012.