The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Richton Park you can determine when to plant cleome by looking at the USDA zone info.

Planting Calendar for Cleome

Frost tolerance for cleome:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You should not plant cleome until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant cleome in Richton Park 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 cleome and expect a good harvest is probably August. If you wait any later than that and your cleome may not have a chance to grow to maturity. Starting your cleome indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Richton Park. It might get as low as -15°F during the coldest months of winter.

Remember that USDA zone info for Richton Park is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Richton Park it frosts late in the year after April 15 so make sure that you are ready to cover your cleome if you have one of those late frosts.

USDA Zone Info for Richton Park

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 Richton Park

You may be interested in your other planting guides for Richton Park.