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.

A way of figuring out when to plant spearmint is to use the USDA zone info for Channahon.

Planting Calendar for Spearmint

Frost tolerance for spearmint:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Spearmint can survive in a bit of cold which tells us that you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant spearmint in Channahon is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant spearmint and expect a good harvest is probably September. Any later than that and your spearmint may not have a chance to fully mature. Starting your spearmint indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Channahon. In the coldest months of winter you should expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Channahon is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Channahon it frosts late in the year after April 15 so be sure to be ready to protect your spearmint in the event of a surprise late frost.

USDA Zone Info for Channahon

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Channahon

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