What plant hardiness zone is Horní Kalná

Horní Kalná is located at Trutnov, Hradec Králové, rrálovéhradecký, Czechia.

Plant hardiness zone (winter frost zone or gardening zone) for Horní Kalná is 6a by the USDA scale.

Coldest zone's winter temperature is −23.3 … −20.6 °C.

Plants of 6a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6a USDA.

Alternative climatic zone of gardening for Horní Kalná by UK RHS scale is H7.

Plants of H7 RHS hardiness zone suitable for outdoor gardening and growing in this winter frost zone H7 RHS.

Horní Kalná @ wikipedia.

* The lowest temperature in Horní Kalná was -21.6 °C on 12/02/2012.