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 Meridian you can estimate when it's possible to plant periwinkles by checking out the USDA zone info.

Planting Calendar for Periwinkles

Frost tolerance for periwinkles:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's not a good idea to plant periwinkles until after the last frost because they require warm weather.

The earliest that you can plant periwinkles in Meridian 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 grow to maturity. Starting your periwinkles indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Meridian. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Meridian may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Meridian there is a last frost after April 15 be ready to protect your periwinkles if you have one of those late frosts.

USDA Zone Info for Meridian

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 Meridian

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