The USDA Zone info is a great tool for gardeners to help us estimate 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 first opportunity to plant sweet potatos in Willits can be determined by checking out the USDA zone info.

Planting Calendar for Sweet Potatos

Frost tolerance for sweet potatos:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's probably a bad idea to plant sweet potatos until after the last frost because they do not do well in cold weather.

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

Last Frost Date

In Willits the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Willits and it is different every year. Since half of the time in Willits there is a last frost after February 15 be ready to protect your sweet potatos if you have a surprise late frost.

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.