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.

By using the USDA zone info for San Diego you should be able to figure out when it's the best time to plant stocks.

Planting Calendar for Stocks

Frost tolerance for stocks:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Stocks do well in some cold which tells us that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant stocks 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 stocks and expect a good harvest is probably September. You probably don't want to wait any later than that or else your stocks may not have a chance to grow to maturity. Starting your stocks indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in San Diego. In the coldest months of winter you can expect an average low temperature of 20°F.

Since the USDA zone info for San Diego is not always accurate the actual date of last frost changes from year to year. Since half of the time in San Diego it frosts late in the year after February 15 be ready to protect your stocks if you have one of those late frosts.

USDA Zone Info for San Diego

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in San Diego

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