One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

The first opportunity to plant crossandra in Chicago Heights can be determined by checking out the USDA zone info.

Planting Calendar for Crossandra

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

Since crossandra require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Chicago Heights. You can expect an average low temperature of -15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Chicago Heights is just an average and the actual date of last frost will vary from year to year. Half of the time in Chicago Heights there is a last frost after April 15 so be sure to be ready to cover your crossandra in the event of a 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.