frostdate name logo in white
frostdate name logo in white

When to Plant Savoy cabbage in Prospect Heights, IL

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant savoy cabbage in Prospect Heights can be estimated by referring to the USDA zone info.


Planting Calendar for Savoy cabbage

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

Savoy cabbage are very cold tolerant which tells us that you can get them planted much earlier than other plants that might not handle the cold.

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

The earliest that you can plant savoy cabbage in Prospect Heights 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 savoy cabbage and expect a good harvest is probably September. Any later than that and your savoy cabbage may not have a chance to fully mature. If you are starting your savoy cabbage indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Prospect Heights. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Prospect Heights is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Prospect Heights you get surprised by a frost after April 15 so make sure that you are ready to cover your savoy cabbage if you have a surprise late frost.

USDA Zone Info for Prospect Heights

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 Prospect Heights

You may be interested in your other planting guides for Prospect Heights.