What plant hardiness zone is Gmina Olszewo-Borki

Gmina Olszewo-Borki is located at Ostrołęka, Masovia, mazowieckie, Poland.

Plant hardiness zone (winter frost zone or gardening zone) for Gmina Olszewo-Borki is 5b by the USDA scale.

Coldest zone's winter temperature is −26.1 … −23.3 °C.

Plants of 5b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 5b USDA.

Alternative climatic zone of gardening for Gmina Olszewo-Borki 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.

Gmina Olszewo-Borki @ wikipedia.

* The lowest temperature in Gmina Olszewo-Borki was -25.1 °C on 03/02/2012.