One of the first steps you take when you are making a decision about 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 reviewing the USDA zone info for San Diego it's possible to estimate when it's possible to plant matricaria.

Planting Calendar for Matricaria

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

Since matricaria are moderately cold tolerant you can plant them a little earlier in the year than other plants that might not handle the cold.

The earliest that you can plant matricaria 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 matricaria and expect a good harvest is probably October. If you wait any later than that and your matricaria may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your matricaria 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 can expect an average low temperature of 35°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for San Diego and it can change quite a bit from year to year. Half of the time in San Diego last frost occurs after January 31 so always be ready to cover your matricaria 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.