One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant sweet potatos in Kerman should 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 Kerman 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. If you wait any later than that and your sweet potatos may not have a chance to really do well. You can get started a few weeks earlier by starting your sweet potatos indoors.

Last Frost Date

On average the last frost is on February 15 in Kerman. In the coldest months of winter you should expect an average low temperature of 20°F.

Remember that USDA zone info for Kerman is an average and the actual date of last frost will vary from year to year. Since half of the time in Kerman it frosts late in the year after February 15 be ready to protect your sweet potatos in the event of one of those late frosts.

USDA Zone Info for Kerman

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 Kerman

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