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When to Plant Radishes in Fairfield, IL

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. 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 the best time to plant radishes in Fairfield by reviewing the USDA zone info.


Planting Calendar for Radishes

Frost tolerance for radishes: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

Radishes do ok in quite a bit of cold which tells us that you can plant them earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant radishes in Fairfield 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 radishes and expect a good harvest is probably September. You probably don't want to wait any later than that or else your radishes may not have a chance to fully mature. If you are starting your radishes indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Fairfield. You should expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for Fairfield is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Fairfield there is a last frost after April 15 so make sure that you are prepared to cover your radishes in the event of one of those late frosts.

USDA Zone Info for Fairfield

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Fairfield

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