The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's a good idea to plant aurinia in San Diego by referring to the USDA zone info.

Planting Calendar for Aurinia

Frost tolerance for aurinia:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant aurinia much earlier in the year because they do well in cold.

The earliest that you can plant aurinia 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 aurinia and expect a good harvest is probably October. You probably don't want to wait any later than that or else your aurinia may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your aurinia indoors.

Last Frost Date

In San Diego the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for San Diego is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in San Diego you get surprised by a frost after February 15 so make sure that you are ready to cover your aurinia if you have a late frost.

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.