Brussels Sprouts (Brassica oleracea var. gemmifera)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers


Brussels Sprouts
Brassica oleracea var. gemmifera

Side dress with fertilizer when 1 foot tall. Provide adequate moisture by giving plants 1 inch of waterper week.Pinch terminal bud after reaching a desired height of about 2-ft tall in northern Illinois after all sprouts have set.  
  • Rubine
  • Long Island Improved
  • Jade Cross E
  • Oliver
  • Prince Marvel
  • Royal Marvel
  • Valiant
Planting Time

Very cold-hardy plant. Takes much longer to mature, can be planted 4 weeks before frost free date. You can start seeds indoor and transplant outdoors. Harden transplants before transplanting them outdoors.


Harvest Time

Harvest sprouts they are about two inches in diameter. They are of excellent qualityafter first frost while the quality is very low when harvested in hot weather. Sprouts can be left on plant in mild winter, and harvested when needed.



Apply garden fertilizer at the same rate as for beets, plant 18 inches within the row, and rows 36 inches apart, plant at the same depth as they were in the container.


Soil Conditions
Moist, Well-Drained
Exposure/Light Requirements
Full Sun
Pests and Problems

Bacterial Disease

Environmental Damage

Insect Damage

Additional pests and problems that may affect this plant:

  • Imported Cabbage Worm
  • Cabbage Looper
  • Diamondback Moth
  • Clubroot
  • Blackrot
  • Leafspot
  • Blackleg
Additional Notes

They are grown for cabbage like sprouts that develop above the leaves on the stems.


Related Resources
Home, Yard & Garden Pest Guide
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic