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

In Holmen you can estimate when you can plant savoy cabbage by looking at 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.

You can plant savoy cabbage a lot earlier in the year because they are very cold tolerant.

The earliest that you can plant savoy cabbage in Holmen is March. However, you really should wait until April 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 August. If you wait 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 little bit earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Holmen. In the coldest months of winter you should expect an average low temperature of -25°F.

Always keep in mind that USDA zone info for Holmen is just an average and the actual date of last frost changes from year to year. Since half of the time in Holmen it frosts late in the year after May 15 be ready to protect your savoy cabbage if you have a late frost.

USDA Zone Info for Holmen

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Holmen

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