What plant hardiness zone is Palm Harbor
Palm Harbor is located at Pinellas County, Florida (FL), USA.
Plant hardiness zone (winter frost zone or gardening zone) for Palm Harbor is 9b by the USDA scale.
Coldest zone's winter temperature is +25 … +30 °F.
Plants of 9b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 9b USDA.
Palm Harbor, Florida @ wikipedia.