When to Plant Brussels Sprouts in Oconomowoc, WI

One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to determine when you can plant brussels sprouts by referring to the USDA zone info for Oconomowoc.


Planting Calendar for Brussels Sprouts

Frost tolerance for brussels sprouts: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Brussels Sprouts do ok in moderate cold which means that you can plant them a little bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant brussels sprouts
Possibly ok, but a risky time to plant brussels sprouts
Probably not a good time to plant brussels sprouts

The earliest that you can plant brussels sprouts in Oconomowoc 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 brussels sprouts and expect a good harvest is probably September. You probably don't want to wait any later than that or else your brussels sprouts may not have a chance to grow to maturity. You can get started a little bit earlier by starting your brussels sprouts indoors.

Last Frost Date

On average the last frost is on April 15 in Oconomowoc. You should expect an average low temperature of -20°F in the coldest months of winter.

It's important to remember that USDA zone info for Oconomowoc is an average and the actual date of last frost is different every year. Half of the time in Oconomowoc you get surprised by a frost after April 15 so be sure to be ready to cover your brussels sprouts if you have a late frost.

USDA Zone Info for Oconomowoc

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Oconomowoc

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