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.

A common way of making a decision about when to plant watermelon is to look at the USDA zone info for Henderson.

Planting Calendar for Watermelon

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

Since watermelon do not do well in cold weather it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant watermelon in Henderson 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. If you wait any later than that and your watermelon may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your watermelon indoors.

Last Frost Date

The average date of last frost is April 15 in Henderson. It might get as low as 5°F during the coldest months of winter.

Since the USDA zone info for Henderson is an average the actual date of last frost is different every year. Half of the time in Henderson there is a last frost after April 15 so be sure to be ready to cover your watermelon if you have one of those late frosts.

USDA Zone Info for Henderson

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Henderson

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