One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant mimulus in Piedmont should be determined by referring to the USDA zone info.

Planting Calendar for Mimulus

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

Since mimulus 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 mimulus 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 mimulus and expect a good harvest is probably August. Any later than that and your mimulus may not have a chance to fully mature. You can get started a few weeks earlier by starting your mimulus indoors.

Last Frost Date

In Piedmont the average date of last frost happens on April 15. It might get as low as 5°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Piedmont is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Piedmont there is a last frost after April 15 be ready to cover your mimulus in the event of a surprise late frost.

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.