Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant carrots in San Diego can be figured out by reviewing the USDA zone info.

Planting Calendar for Carrots

Frost tolerance for carrots:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Carrots are one of those plants that can tolerate a little bit of cold weather which tells us that you can start planting them earlier than plants that are more sensitive to the cold.

The earliest that you can plant carrots in San Diego is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant carrots and expect a good harvest is probably October. Any later than that and your carrots may not have a chance to fully mature. You can get started a few weeks earlier by starting your carrots indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in San Diego. In the coldest months of winter you can expect an average low temperature of 35°F.

Remember that USDA zone info for San Diego is not always accurate and the actual date of last frost changes from year to year. Since half of the time in San Diego you get a frost after January 31 be ready to protect your carrots in the event of one of those late frosts.

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.