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.

In Chicago Heights you can estimate when you can plant endive by reviewing the USDA zone info.

Planting Calendar for Endive

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

Endive tend to make it in mild cold which tells us that you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant endive in Chicago Heights 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 endive and expect a good harvest is probably September. Any later than that and your endive may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your endive indoors.

Last Frost Date

In Chicago Heights the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

It's important to remember that the actual date of last frost is an average because it is based on the USDA zone info for Chicago Heights and it changes from year to year. Since half of the time in Chicago Heights it frosts late in the year after April 15 be ready to protect your endive if you have a surprise late frost.

USDA Zone Info for Chicago Heights

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 Chicago Heights

You may be interested in your other planting guides for Chicago Heights.