When to Plant Radicchio in Metropolis, IL

One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant radicchio in Metropolis should be figured out by looking at the USDA zone info.


Planting Calendar for Radicchio

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

Radicchio are moderately cold tolerant which tells us that you can get them planted earlier than other frost tender plants.

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

The earliest that you can plant radicchio in Metropolis 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 radicchio and expect a good harvest is probably September. If you wait any later than that and your radicchio may not have a chance to really do well. You can get started a few weeks earlier by starting your radicchio indoors.

Last Frost Date

In Metropolis the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Metropolis is an average the actual date of last frost will vary from year to year. Since half of the time in Metropolis you get a frost after April 15 be ready to cover your radicchio in the event of a late frost.

USDA Zone Info for Metropolis

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Metropolis

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