One of the first steps you take when you are figuring out your gardening schedule is find your 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.

The first opportunity to plant scutellaria in San Rafael can be estimated by using the USDA zone info.

Planting Calendar for Scutellaria

Frost tolerance for scutellaria:	Not tolerant of frost.
When to plant:	After the last frost.

Scutellaria are not cold tolerant which tells us that it's important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant scutellaria in San Rafael 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 scutellaria and expect a good harvest is probably September. If you wait any later than that and your scutellaria may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your scutellaria indoors.

Last Frost Date

On average the last frost is on January 31 in San Rafael. You should expect an average low temperature of 30°F in the coldest months of winter.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for San Rafael and it changes from year to year. Half of the time in San Rafael you get a frost after January 31 so always be ready to cover your scutellaria if you have one of those late frosts.

USDA Zone Info for San Rafael

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in San Rafael

You may be interested in your other planting guides for San Rafael.