One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant periwinkles in Leland should be determined by using the USDA zone info.

Planting Calendar for Periwinkles

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

It's probably a bad idea to plant periwinkles until after the last frost has passed because they require warm weather.

The earliest that you can plant periwinkles in Leland 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 March 15 in Leland. It might get as low as 10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Leland may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Leland last frost occurs after March 15 be ready to protect your periwinkles in the event of one of those late frosts.

USDA Zone Info for Leland

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Leland

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