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.

In Mcallen you can figure out when it's possible to plant watermelon by referring to the USDA zone info.

Planting Calendar for Watermelon

Frost tolerance for watermelon:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's a bad idea to plant watermelon until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant watermelon in Mcallen 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

On average the last frost when the weather gets warmer is on February 15 in Mcallen. You can expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Mcallen is not always accurate and the actual date of last frost is different every year. Since half of the time in Mcallen it frosts late in the year after February 15 be ready to cover your watermelon in the event of a surprise late frost.

USDA Zone Info for Mcallen

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 Mcallen

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