Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Mount Prospect you should be able to determine when it's possible to plant savoy cabbage.

Planting Calendar for Savoy cabbage

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

Since savoy cabbage do well in cold you can plant them earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant savoy cabbage in Mount Prospect 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. If you wait any later than that and your savoy cabbage may not have a chance to really do well. Starting your savoy cabbage indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Mount Prospect. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Mount Prospect and it can change quite a bit from year to year. Since half of the time in Mount Prospect there is a last frost after April 15 be ready to cover your savoy cabbage in the event of a surprise late frost.

USDA Zone Info for Mount Prospect

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 Mount Prospect

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