One of the first steps you take when you are estimating 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.

One way of estimating when it's a good idea to plant stevia is to examine the USDA zone info for San Anselmo.

Planting Calendar for Stevia

Frost tolerance for stevia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since stevia do not do well in cold weather you need to wait until after the last frost has passed before you can plant them.

The earliest that you can plant stevia in San Anselmo is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant stevia and expect a good harvest is probably September. Any later than that and your stevia may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your stevia indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in San Anselmo. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for San Anselmo is not always accurate and the actual date of last frost will vary from year to year. Half of the time in San Anselmo you get surprised by a frost after February 15 so make sure that you are prepared to protect your stevia if you have one of those late frosts.

USDA Zone Info for San Anselmo

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 San Anselmo

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