What plant hardiness zone is Duck Key

Duck Key is located at Monroe County, Florida (FL), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Duck Key is 11a by the USDA scale.

Coldest zone's winter temperature is +40 … +45 °F.

Plants of 11a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 11a USDA.

Duck Key, Florida @ wikipedia.