One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

The USDA zone info for San Fernando should be looked at to figure out when it's the best time to plant tomatos.

Planting Calendar for Tomatos

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

It's a bad idea to plant tomatos until after the last frost because they require warm weather.

The earliest that you can plant tomatos in San Fernando 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 tomatos and expect a good harvest is probably September. Any later than that and your tomatos may not have a chance to grow to maturity. Starting your tomatos indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on January 31 in San Fernando. In the coldest months of winter you should expect an average low temperature of 30°F.

Always keep in mind that USDA zone info for San Fernando is just an average and the actual date of last frost changes from year to year. Since half of the time in San Fernando you get a frost after January 31 be ready to cover your tomatos if you have a late frost.

USDA Zone Info for San Fernando

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 San Fernando

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