The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. 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 chicory in Naperville should be estimated by reviewing the USDA zone info.

Planting Calendar for Chicory

Frost tolerance for chicory:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since chicory are moderately cold tolerant you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant chicory in Naperville 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 chicory and expect a good harvest is probably September. You probably don't want to wait any later than that or else your chicory may not have a chance to really do well. If you are starting your chicory indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Naperville 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 Naperville you get a frost after April 15 be ready to cover your chicory in the event of one of those late frosts.

USDA Zone Info for Naperville

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 Naperville

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