Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Jacksonville Beach it's possible to estimate when it's the best time to plant watermelon.

Planting Calendar for Watermelon

Frost tolerance for watermelon:	Not tolerant of frost.
When to plant:	After the last frost.

Watermelon require warm weather which means that it is necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant watermelon in Jacksonville Beach 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 watermelon and expect a good harvest is probably September. If you wait any later than that and your watermelon may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your watermelon indoors.

Last Frost Date

In Jacksonville Beach the average date of last frost happens on February 15. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Jacksonville Beach is just an average the actual date of last frost will vary from year to year. Half of the time in Jacksonville Beach there is a last frost after February 15 so make sure that you are ready to protect your watermelon if you have a surprise late frost.

USDA Zone Info for Jacksonville Beach

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 Beach

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