Before planting it is a good idea to find your USDA Zone info to determine 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.

You can determine when it's the best time to plant melons in Holtville by looking at the USDA zone info.

Planting Calendar for Melons

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

It's probably a bad idea to plant melons until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant melons in Holtville is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant melons and expect a good harvest is probably September. If you wait any later than that and your melons may not have a chance to really do well. If you are starting your melons indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Holtville. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Holtville is an average the actual date of last frost changes from year to year. Half of the time in Holtville last frost occurs after January 31 so be sure to be ready to protect your melons in the event of one of those late frosts.

USDA Zone Info for Holtville

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Holtville

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