What plant hardiness zone is Colli del Tronto

Colli del Tronto is located at Ascoli Piceno, Marche, Italy.

Plant hardiness zone (winter frost zone or gardening zone) for Colli del Tronto 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 Colli del Tronto 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.

Colli del Tronto @ wikipedia.

* The lowest temperature in Colli del Tronto was -5.9 °C on 28/02/2018.