Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant watermelon in Galveston should be determined by using the USDA zone info.

Planting Calendar for Watermelon

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

You really shouldn't plant watermelon until after the last frost has passed because they require warm weather.

The earliest that you can plant watermelon in Galveston 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. Any later than that and your watermelon may not have a chance to really do well. If you are starting your watermelon indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Galveston. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Galveston may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Galveston you get a frost after February 15 be ready to protect your watermelon if you have a late frost.

USDA Zone Info for Galveston

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 Galveston

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