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.

In Willits you can estimate when to plant stevia by reviewing the USDA zone info.

Planting Calendar for Stevia

Frost tolerance for stevia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Stevia are not cold tolerant which tells us that you have to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant stevia in Willits 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. If you wait any later than that and your stevia may not have a chance to grow to maturity. Starting your stevia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Remember that USDA zone info for Willits is an average and the actual date of last frost is different every year. Since half of the time in Willits there is a last frost after February 15 be ready to cover your stevia if you have one of those late frosts.

USDA Zone Info for Willits

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 Willits

You may be interested in your other planting guides for Willits.