One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

In San Diego you can determine when it's a good idea to plant myosotis by checking out the USDA zone info.

Planting Calendar for Myosotis

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

Since myosotis do well in moderate cold 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 myosotis 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 myosotis and expect a good harvest is probably October. Any later than that and your myosotis may not have a chance to really do well. You can get started a little bit earlier by starting your myosotis indoors.

Last Frost Date

On average the last frost has passed is on February 15 in San Diego. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for San Diego is not always accurate the actual date of last frost will vary from year to year. Since half of the time in San Diego you get surprised by a frost after February 15 be ready to cover your myosotis 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.