Extension Logo
Extension Logo
University of Minnesota Extension

Growing Brussels sprouts in home gardens

A quick guide to Brussels sprouts

  • Brussels sprouts are a fall crop in Minnesota.
  • Sow seeds in June, indoors or directly in the garden.
  • Water thoroughly once a week for well-formed, large, sweet sprouts.
  • They can stay in the garden as long as temperatures remain above 20°F.

Flavorful winter vegetables 

Brussels sprouts (Brassica oleracea var. gemmifera) are tight heads of tender leaves, like mini cabbages, grown on the stalk of a tall, leafy plant. The large leaves are smooth and thick and resemble collard greens; you can prepare them in the same ways.

Where each leaf joins the stem, a small sprout develops, beginning with the lowest leaves and continuing up the stalk. The sprouts can be as large as two inches in diameter, but gardeners often harvest them when they are smaller.

Grown as a fall crop in Minnesota, Brussels sprouts are one of the few crops usually harvested after snow has fallen. Flavor improves with cooler fall weather; they can stay in the garden as long as temperatures remain above 20°F.  

Since they must mature in cool weather for good quality, plan to harvest from late September in the north, through late October in the southern part of the state and along the Lake Superior shoreline.

Soil pH and fertility




How to keep your Brussels sprouts healthy and productive


Managing pests and diseases

Many things can affect Brussels sprouts plants. Changes in physical appearance and plant health can be caused by the environment, plant diseases, insects and wildlife. In order to address what you’re seeing, it is important to make a correct diagnosis.

You can find additional help identifying common pest problems by using the online diagnostic tools or by sending a sample to the UMN Plant Disease Diagnostic Clinic. You can use Ask a Master Gardener to share pictures and get input.


Authors: Marissa Schuh, IPM Extension educator, and Jill MacKenzie

Reviewed in 2022

Page survey

© 2024 Regents of the University of Minnesota. All rights reserved. The University of Minnesota is an equal opportunity educator and employer.