One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. 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 figure out when it's the best time to plant sweet corn by checking out the USDA zone info for Jacksonville.

Planting Calendar for Sweet corn

Frost tolerance for sweet corn:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Sweet corn do well in some cold which means that you can plant them just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant sweet corn in Jacksonville 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 sweet corn and expect a good harvest is probably August. If you wait any later than that and your sweet corn may not have a chance to really do well. Starting your sweet corn indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Jacksonville. You can expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for Jacksonville is an average and the actual date of last frost is different every year. Half of the time in Jacksonville you get surprised by a frost after April 15 so always be ready to protect your sweet corn if you have a surprise late frost.

USDA Zone Info for Jacksonville

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Jacksonville

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