When to Plant Broccoli in Chillicothe, IL

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when it's a good idea to plant broccoli in Chillicothe by reviewing the USDA zone info.


Planting Calendar for Broccoli

Frost tolerance for broccoli: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

You can plant broccoli a bit earlier in the year because they are moderately cold tolerant.

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

The earliest that you can plant broccoli in Chillicothe is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant broccoli and expect a good harvest is probably September. If you wait any later than that and your broccoli may not have a chance to fully mature. Starting your broccoli indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Chillicothe. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Chillicothe is just an average the actual date of last frost changes from year to year. Half of the time in Chillicothe you get a frost after April 15 so just be sure to be ready to protect your broccoli in the event of a surprise late frost.

USDA Zone Info for Chillicothe

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 Chillicothe

You may be interested in your other planting guides for Chillicothe.