When to Plant Savoy cabbage in Silvis, 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.

The first chance to plant savoy cabbage in Silvis should be estimated by reviewing 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 one of those plants that can tolerate quite a bit of cold weather which means that you can plant them a quite a bit earlier than more sensitive plants.

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 Silvis 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 grow to maturity. Starting your savoy cabbage indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Silvis. It might get as low as -15°F during the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Silvis and it is different every year. Half of the time in Silvis it frosts late in the year after April 15 so make sure that you are ready to cover your savoy cabbage if you have a late frost.

USDA Zone Info for Silvis

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 Silvis

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