One of the first steps you take when you are getting a good idea 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.

In Piedmont you can figure out when it's a good idea to plant evolvulus by referring to the USDA zone info.

Planting Calendar for Evolvulus

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

Since evolvulus require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant evolvulus in Piedmont 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 evolvulus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your evolvulus may not have a chance to fully mature. You can get started a few weeks earlier by starting your evolvulus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Piedmont. You can expect an average low temperature of 5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Piedmont is an average and the actual date of last frost changes from year to year. Since half of the time in Piedmont it frosts late in the year after April 15 be ready to protect your evolvulus if you have one of those late frosts.

USDA Zone Info for Piedmont

Here is the info for USDA Zone 7b.

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

Plants to Grow in Piedmont

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