When to Plant Savoy cabbage in Ottawa, 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.

In Ottawa you can estimate when it's possible to plant savoy cabbage by using the USDA zone info.

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Planting Calendar for Savoy cabbage

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

You can plant savoy cabbage earlier in the year because they do well in 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 Ottawa 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. You probably don't want to wait any later than that or else your savoy cabbage may not have a chance to grow to maturity. If you are starting your savoy cabbage indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Ottawa may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Ottawa you get a frost after April 15 so be sure to be ready to cover your savoy cabbage in the event of a late frost.

USDA Zone Info for Ottawa

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 Ottawa

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