What plant hardiness zone is Monte Porzio Catone

Monte Porzio Catone is located at Rome, Lazio, Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Monte Porzio Catone 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 Monte Porzio Catone 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.

Monte Porzio Catone @ wikipedia.

* The lowest temperature in Monte Porzio Catone was -5.7 °C on 28/02/2018.