The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to determine when you can plant four o' clock by using the USDA zone info for New Orleans.

Planting Calendar for Four O' Clock

Frost tolerance for four o' clock:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Four O' Clock require warm weather which tells us that it's necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant four o' clock in New Orleans is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant four o' clock and expect a good harvest is probably September. If you wait any later than that and your four o' clock may not have a chance to fully mature. Starting your four o' clock indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in New Orleans. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for New Orleans is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in New Orleans it frosts late in the year after February 15 be ready to protect your four o' clock if you have a late frost.

USDA Zone Info for New Orleans

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in New Orleans

You may be interested in your other planting guides for New Orleans.