The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant myosotis in Santa Rosa should be estimated 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.

Myosotis are moderately cold tolerant which tells us that you can get them planted earlier than plants that are more sensitive to the cold.

The earliest that you can plant myosotis in Santa Rosa 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. You probably don't want to wait any later than that or else your myosotis may not have a chance to fully mature. Starting your myosotis indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Santa Rosa the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Santa Rosa may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Santa Rosa you get surprised by a frost after February 15 be ready to cover your myosotis in the event of a surprise late frost.

USDA Zone Info for Santa Rosa

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Santa Rosa

You may be interested in your other planting guides for Santa Rosa.