What plant hardiness zone is Valle Castellana

Valle Castellana is located at Teramo, Abruzzo (Abruzzese), Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Valle Castellana 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 Valle Castellana 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.

Valle Castellana @ wikipedia.

* The lowest temperature in Valle Castellana was -6.7 °C on 28/02/2018.