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

The earliest that you can plant stevia in San Diego should be determined by looking at the USDA zone info.

Planting Calendar for Stevia

Frost tolerance for stevia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You really shouldn't plant stevia until after the last frost because they do not do well in cold weather.

The earliest that you can plant stevia 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 stevia and expect a good harvest is probably September. Any later than that and your stevia may not have a chance to really do well. You can get started a few weeks earlier by starting your stevia indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in San Diego. In the coldest months of winter you should expect an average low temperature of 35°F.

It's important to remember that USDA zone info for San Diego is an average and the actual date of last frost changes from year to year. Half of the time in San Diego there is a last frost after January 31 so make sure that you are prepared to cover your stevia in the event of a 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.