When to Plant Coleus in Olympia Fields, IL

The USDA Zone info is a great tool for gardeners to help us figure out 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.

By using the USDA zone info for Olympia Fields it's a good idea to estimate when to plant coleus.


Planting Calendar for Coleus

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

It's not a good idea to plant coleus until after the last frost because they require warm weather.

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

The earliest that you can plant coleus in Olympia Fields 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 coleus and expect a good harvest is probably August. If you wait any later than that and your coleus may not have a chance to grow to maturity. Starting your coleus 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 Olympia Fields. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Olympia Fields is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Olympia Fields you get surprised by a frost after April 15 so make sure that you are ready to protect your coleus if you have a late frost.

USDA Zone Info for Olympia Fields

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 Olympia Fields

You may be interested in your other planting guides for Olympia Fields.