One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to estimate when it's a good idea to plant watermelon by looking at the USDA zone info for Mexia.

Planting Calendar for Watermelon

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

Watermelon require warm weather which tells us that you really should wait until it warms up after the last frost before you can plant them.

The earliest that you can plant watermelon in Mexia is April. However, you really should wait until May if you don't want to take any chances.

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

Last Frost Date

On average all chance of frost has passed is on March 15 in Mexia. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Mexia is just an average the actual date of last frost changes from year to year. Half of the time in Mexia it frosts late in the year after March 15 so just be sure to be ready to cover your watermelon if you have a late frost.

USDA Zone Info for Mexia

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Mexia

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