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 USDA zone info for Chicago Heights can be reviewed to figure out when it's the best time to plant monkey flower.

Planting Calendar for Monkey Flower

Frost tolerance for monkey flower:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant monkey flower until after the last frost because they do not do well in cold weather.

The earliest that you can plant monkey flower 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 monkey flower and expect a good harvest is probably August. If you wait any later than that and your monkey flower may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your monkey flower indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Chicago Heights. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Chicago Heights is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Chicago Heights last frost occurs after April 15 be ready to protect your monkey flower if you have 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.