When can I plant Cleome in Evanston, IL

Before planting it is a good idea to find our USDA Zone info to estimate our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The USDA zone info for Evanston should be reffered to in order to figure out when it's possible to plant cleome.


Planting Calendar for Cleome

Frost tolerance for cleome: Not tolerant of frost.
When you should plant them: After the last frost when the weather gets warmer.

Since cleome require warm weather it's important to wait until after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant cleome
Possibly ok, but a risky time to plant cleome
Probably not a good time to plant cleome

The earliest that you can plant cleome in Evanston 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. Any later than that and your cleome may not have a chance to really do well. Starting your cleome indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Evanston. We should expect an average low temperature of -15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Evanston is just an average and our actual date of last frost is different every year. Since half of the time in Evanston we get a frost after April 15 be ready to cover your cleome if we have one of those late frosts.

USDA Zone Info for Evanston

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 Evanston

You may be interested in our other planting guides for Evanston.