One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant salvia in San Rafael can be estimated by looking at the USDA zone info.

Planting Calendar for Salvia

Frost tolerance for salvia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since salvia are one of those plants that can tolerate a tiny bit of cold weather you can plant them just a tiny bit earlier in the year than more sensitive plants.

The earliest that you can plant salvia 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 salvia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your salvia may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your salvia indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in San Rafael. It might get as low as 30°F during the coldest months of winter.

Always keep in mind that USDA zone info for San Rafael is not always accurate and the actual date of last frost changes from year to year. Half of the time in San Rafael you get surprised by a frost after January 31 so always be ready to protect your salvia in the event of a late frost.

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.