The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Jacksonville can be reviewed to figure out when it's possible to plant lettuce.

Planting Calendar for Lettuce

Frost tolerance for lettuce:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Lettuce do ok in mild cold which means that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant lettuce in Jacksonville is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant lettuce and expect a good harvest is probably October. Any later than that and your lettuce may not have a chance to grow to maturity. Starting your lettuce indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Jacksonville. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Jacksonville is an average the actual date of last frost changes from year to year. Since half of the time in Jacksonville you get surprised by a frost after February 15 be ready to cover your lettuce if you have one of those late frosts.

USDA Zone Info for Jacksonville

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Jacksonville

You may be interested in your other planting guides for Jacksonville.