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Crop Guide – Cabbage

Common Name Cabbage
Scientific Name Brassica oleracea

Uses Edible; Side dish (raw, steamed, roasted, boiled, sautéed), salads, slaw, microgreens

Crop Timeline

  • Transplants: Start seeds 6 weeks before transplanting;
    • Spring Planting: March (4 weeks before last frost)
    • Fall Planting: September (6-8 weeks before first frost)
  • Microgreens: Direct sow 2 weeks before consumption

Planting tips

  • Fertilizer: Supply a constant supply of nitrogen rich organic fertilizer (bloodmeal, cottonseed meal, composted manure) throughout the growing season
  • Number of plants per square foot: 1
  • Growing structures: None
  • Frost protection: None

Harvest

  • Harvest 80-180 days from sowing, or 60-100 days from transplant
    • Harvest large, single head at soil level when head is firm

Pests 

  • Cabbage worm/looper
    • Description: Green, inch-worm, often found on leaf underside, along stem or leaf veins
    • Treatment: Bt pesticide application or mechanical removal (pick them off and squish them)
  • Slugs
    • Description: small gray-brown, soft-bodied mollusk; slimy trail often noticeable
    • Treatment: Hand pick, keep clean soil surface around plants, baits
  • Diseases
    • Rotate crops every 2 years; avoid planting another Brassica crop in that space in the “off” year.

This crop guide information has been tailored to school garden use, particularly for Plant Hardiness Zone 7. Other resources you find may be different based on efficiencies of larger scale production systems or maximum harvest yield. If you have questions, feel free to contact Doug Vernon or your local Cooperative Extension office.