The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when it's the best time to plant periwinkles is to consult the USDA zone info for Dothan.

Planting Calendar for Periwinkles

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

Since periwinkles are not cold tolerant it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant periwinkles in Dothan is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant periwinkles and expect a good harvest is probably August. Any later than that and your periwinkles may not have a chance to grow to maturity. Starting your periwinkles indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Dothan. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Dothan may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Dothan it frosts late in the year after March 15 so just be sure to be ready to protect your periwinkles in the event of a surprise late frost.

USDA Zone Info for Dothan

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Dothan

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