One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for San Diego you will be able to figure out when it's a good idea to plant corn salad.

Planting Calendar for Corn salad

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

It's probably not a good idea to plant corn salad until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant corn salad in San Diego 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 corn salad and expect a good harvest is probably September. If you wait any later than that and your corn salad may not have a chance to really do well. Starting your corn salad indoors is a great way to get them started a little bit earlier.

Last Frost Date

In San Diego the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 35°F.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for San Diego and it is different every year. Since half of the time in San Diego last frost occurs after January 31 be ready to protect your corn salad in the event of a surprise late frost.

USDA Zone Info for San Diego

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in San Diego

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