What plant hardiness zone is Old Jefferson

Old Jefferson is located at East Baton Rouge Parish, Louisiana (LA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Old Jefferson 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.

Old Jefferson, Louisiana @ wikipedia.