What plant hardiness zone is Gretna

Gretna is located at Jefferson Parish, Louisiana (LA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Gretna 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.