The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Mentor you can figure out when to plant lisianthus by using the USDA zone info.

Planting Calendar for Lisianthus

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

Since lisianthus do not do well in cold weather you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant lisianthus in Mentor 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 lisianthus and expect a good harvest is probably August. Any later than that and your lisianthus may not have a chance to fully mature. Starting your lisianthus indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Mentor. You should expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Mentor is an average and the actual date of last frost changes from year to year. Since half of the time in Mentor last frost occurs after April 15 be ready to cover your lisianthus in the event of a surprise late frost.

USDA Zone Info for Mentor

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Mentor

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