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.

The earliest that you can plant sweet potato vine in Hercules can be estimated by reviewing 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 require warm weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant sweet potato vine in Hercules 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. Any later than that and your sweet potato vine may not have a chance to really do well. You can get started a few weeks earlier by starting your sweet potato vine indoors.

Last Frost Date

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

Since the USDA zone info for Hercules may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Hercules there is a last frost after February 15 so make sure that you are prepared to protect your sweet potato vine in the event of a late frost.

USDA Zone Info for Hercules

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 Hercules

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