UC Master Gardeners, Santa Clara County, CA
University of California
UC Master Gardeners, Santa Clara County, CA

Brussels Sprouts

Brussels sprouts ready for harvest (Photo: Allen Buchinski)
Brussels sprouts ready for harvest (Photo: Allen Buchinski)
Garden Help > Vegetables

UC Links

Pest management: Pests and diseases of Brussels sprouts

The Basics

Brussels sprouts are a cool season crop, preferring temperatures under 70º F. Sprouts maturing in hot weather and/or dry conditions are more likely to develop bitterness.

When to plant: 

  • Transplant into the garden in Jul–Aug (possibly Sept).
  • If grown from seed, start 4–5 weeks before desired transplant date.

Harvest window: 

  • Sprouts form at the places on the stalk where the leaves attach.
  • They are ready to pick when they are 1" in diameter and firm.
  • Lower sprouts are ready first and should be harvested earlier than sprouts farther up the stem.

Care overview:

  • Provide initial nitrogen fertilizer for growth, but avoid additional nitrogen after sprouts begin to form to keep the sprouts from splitting.
  • Some growers like to remove the lower leaves, but it isn't necessary.

More links:

Recommended Varieties for Santa Clara County

We don't have variety recommendations for Santa Clara County, however, Cornell University has a Brussels sprouts variety listing developed as part of their Citizen Science Program.

 
 
 
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