One of the first steps you take when you are making a decision about 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 figuring out when it's a good idea to plant chicory is to check out the USDA zone info for Herrin.

Planting Calendar for Chicory

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

Chicory are one of those plants that can tolerate a little bit of cold weather which means that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant chicory in Herrin 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. Any later than that and your chicory may not have a chance to fully mature. You can get started a few weeks earlier by starting your chicory indoors.

Last Frost Date

In Herrin the average date of last frost happens on April 15. You should expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Herrin is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Herrin you get a frost after April 15 so make sure that you are ready to cover your chicory if you have a late frost.

USDA Zone Info for Herrin

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 Herrin

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