What plant hardiness zone is Los Altos Colonia

Los Altos Colonia is located at Webb County, Texas (TX), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Los Altos Colonia is 9a by the USDA scale.

Coldest zone's winter temperature is +20 … +25 °F.

Plants of 9a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 9a USDA.