Before planting it is a good idea to find your USDA Zone info to figure out 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 Mustang you can estimate when you can plant periwinkles by referring to the USDA zone info.

Planting Calendar for Periwinkles

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

Since periwinkles require warm weather you need to wait until after the last frost before you can plant them.

The earliest that you can plant periwinkles in Mustang 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. You probably don't want to wait any later than that or else your periwinkles may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your periwinkles indoors.

Last Frost Date

The average date of last frost is April 15 in Mustang. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Mustang is not always accurate the actual date of last frost will vary from year to year. Half of the time in Mustang there is a last frost after April 15 so make sure that you are ready to cover your periwinkles in the event of a late frost.

USDA Zone Info for Mustang

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Mustang

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