Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Stockton you can figure out when it's possible to plant sweet potato vine by checking out the USDA zone info.

Planting Calendar for Sweet Potato Vine

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

Since sweet potato vine are not cold tolerant you need to wait until after the last frost before you can plant them.

The earliest that you can plant sweet potato vine in Stockton 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 potato vine and expect a good harvest is probably September. If you wait any later than that and your sweet potato vine may not have a chance to fully mature. Starting your sweet potato vine indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Stockton. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Stockton is an average the actual date of last frost will vary from year to year. Since half of the time in Stockton there is a last frost after February 15 be ready to protect your sweet potato vine if you have a late frost.

USDA Zone Info for Stockton

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 Stockton

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