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.

In Sedalia you can determine when it's the best time to plant periwinkles by looking at 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.

Periwinkles require warm weather which means that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant periwinkles in Sedalia 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. If you are starting your periwinkles indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Sedalia. In the coldest months of winter you can expect an average low temperature of -10°F.

Remember that USDA zone info for Sedalia is an average and the actual date of last frost changes from year to year. Since half of the time in Sedalia it frosts late in the year after April 15 be ready to cover your periwinkles if you have a late frost.

USDA Zone Info for Sedalia

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Sedalia

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