One of the first steps you take when you are estimating 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.

A common way of getting a good idea when it's possible to plant mimulus is to refer to the USDA zone info for Wooster.

Planting Calendar for Mimulus

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

Mimulus are not cold tolerant which tells us that you have to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant mimulus in Wooster 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 grow to maturity. You can get started a little bit earlier by starting your mimulus indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Wooster. It might get as low as -10°F during the coldest months of winter.

Keep in mind that USDA zone info for Wooster may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Wooster you get surprised by a frost after April 15 be ready to protect your mimulus in the event of a surprise late frost.

USDA Zone Info for Wooster

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 Wooster

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