One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

You can figure out when you can plant watermelon in San Jacinto by checking out the USDA zone info.

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 you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant watermelon in San Jacinto 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 fully mature. You can get started a little bit earlier by starting your watermelon indoors.

Last Frost Date

The average date of last frost is February 15 in San Jacinto. You can expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for San Jacinto is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in San Jacinto you get surprised by a frost after February 15 be ready to cover your watermelon in the event of one of those late frosts.

USDA Zone Info for San Jacinto

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 San Jacinto

You may be interested in your other planting guides for San Jacinto.