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.

It's a good idea to figure out when to plant sweet potato vine by looking at the USDA zone info for Manteca.

Planting Calendar for Sweet Potato Vine

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

It's a bad idea to plant sweet potato vine until after the last frost because they are not cold tolerant.

The earliest that you can plant sweet potato vine in Manteca 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. You probably don't want to wait any later than that or else your sweet potato vine may not have a chance to grow to maturity. You can get started a little bit earlier by starting your sweet potato vine indoors.

Last Frost Date

The average date of last frost is February 15 in Manteca. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Manteca is just an average the actual date of last frost will vary from year to year. Since half of the time in Manteca last frost occurs after February 15 be ready to cover your sweet potato vine in the event of a surprise late frost.

USDA Zone Info for Manteca

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 Manteca

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