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

One way of getting a good idea when it's the best time to plant periwinkles is to consult the USDA zone info for Pittston.

Planting Calendar for Periwinkles

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

Since periwinkles do not do well in cold weather you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant periwinkles in Pittston 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 fully mature. You can get started a few weeks earlier by starting your periwinkles indoors.

Last Frost Date

The average date of last frost is April 15 in Pittston. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Pittston is an average the actual date of last frost is different every year. Since half of the time in Pittston you get surprised by a frost after April 15 be ready to protect your periwinkles if you have a late frost.

USDA Zone Info for Pittston

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Pittston

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