What plant hardiness zone is Southport
Southport is located at Brunswick County, North Carolina (NC), USA.
Plant hardiness zone (winter frost zone or gardening zone) for Southport is 8a by the USDA scale.
Coldest zone's winter temperature is +10 … +15 °F.
Plants of 8a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 8a USDA.
Southport, North Carolina @ wikipedia.