History
Brunswick Cabbage is one of the oldest and most celebrated heirloom cabbages in cultivation — a variety with roots stretching back to 18th-century Germany, where it was prized for its enormous heads, exceptional storage quality, and reliable performance in cold climates. Brought to America by German immigrants, Brunswick became a staple of the American kitchen garden and a cornerstone of traditional sauerkraut-making, valued for its dense, crisp leaves and rich, sweet flavor that deepens with cold weather. While modern hybrid cabbages have largely replaced heirlooms in commercial production, Brunswick has endured as a beloved garden variety for generations of home gardeners who prize its flavor, size, and keeping quality above all else. Open-pollinated and non-GMO.
Plant Profile
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Days to Maturity: 85–90 days from transplant
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Head Size: Large, 8–12 lbs, slightly flattened and dense
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Color: Blue-green outer leaves, pale yellow-green interior
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Plant Type: Open-pollinated, non-GMO heirloom
Flavor Profile
Brunswick Cabbage delivers a rich, sweet, and mildly peppery cabbage flavor that is far more complex and satisfying than modern hybrid varieties. The leaves are crisp and tender with a fine texture and excellent moisture content — ideal for fresh eating, braising, and fermenting. Cold weather and light frost dramatically improve the flavor, converting starches to sugars and producing a sweetness that makes Brunswick one of the finest fall and winter cabbages available. The dense, tightly packed heads hold their flavor and texture beautifully through long storage, making Brunswick the traditional choice for sauerkraut and long-keeping winter cabbage.
Growth Type & Harvest Yields
Brunswick is a vigorous, heavy-producing cabbage that forms large, slightly flattened heads weighing 8–12 pounds at maturity. Plants grow 18–24 inches tall with broad, spreading outer leaves that protect the dense interior head. A single planting of 6–8 plants will provide a generous harvest of large heads for fresh eating, storage, and fermentation. Brunswick performs best as a fall crop — started in midsummer and harvested after the first frosts of autumn for peak flavor and storage quality. Heads left in the garden after light frost will continue to sweeten and can be harvested through early winter in mild climates.
Disease Resistance
- Good tolerance to cold — survives light to moderate frosts and improves in flavor after cold exposure
- Moderate resistance to black rot and clubroot in well-drained soils
- Tip: Rotate cabbage with non-brassica crops every 3–4 years to prevent clubroot buildup in the soil
- Tip: Use row covers early in the season to protect against cabbage worms and imported cabbageworm
Growing Tips & Planting Dimensions
- Spacing: 18–24 inches between plants in rows 24–36 inches apart — large heads need room
- Support: No staking needed — plants are self-supporting
- Sow depth: ¼ inch deep indoors
- Germination: 5–10 days at soil temps of 65–75°F
- Full sun — at least 6–8 hours of direct sunlight daily
- Prefers rich, well-drained soil with consistent moisture and good fertility
- Side-dress with compost or balanced fertilizer when heads begin to form
- Mulch to retain moisture and suppress weeds around the base
When to Plant
Start seeds indoors 6–8 weeks before your last frost date for a spring crop, or 10–12 weeks before your first fall frost for a fall crop. Transplant outdoors when seedlings are 4–6 inches tall. Brunswick performs best as a fall crop — transplant in midsummer so heads mature in cool fall weather. Can also be direct sown outdoors 2–4 weeks before last frost in spring. Find your frost dates and hardiness zone at the USDA Plant Hardiness Zone Map.
Companion Plants & Mutual Benefits
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Dill — attracts beneficial wasps that prey on cabbage worms and aphids
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Marigolds — deter aphids, whiteflies, and nematodes throughout the bed
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Onions & Leeks — strong allium scent confuses and deters cabbage moths
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Nasturtiums — act as a trap crop for aphids, drawing them away from cabbage
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Avoid planting near: tomatoes, peppers, and strawberries — brassicas inhibit their growth
How to Enjoy
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Sauerkraut: The traditional use — Brunswick’s dense, crisp leaves and high moisture content make it the ideal fermentation cabbage
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Braised: Slow-braise with butter, apple, and caraway for a classic German-style side dish
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Coleslaw: Shred finely for a crisp, sweet slaw with a rich, complex flavor
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Stuffed Cabbage Rolls: Large, pliable leaves are perfect for wrapping hearty fillings
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Soups & Stews: Add to borscht, minestrone, or any hearty winter soup for body and sweetness
Why Gardeners Love Brunswick Cabbage
- One of the largest and most productive heirloom cabbages available — heads reach 8–12 lbs
- Rich, sweet flavor that deepens dramatically after frost
- Exceptional storage quality — keeps for months in a cool root cellar or refrigerator
- The traditional sauerkraut cabbage — dense, crisp, and high in natural moisture
- Open-pollinated and non-GMO — save your own seeds year after year
- A proven heirloom with over 200 years of performance in home gardens
Harvest Tips
- Harvest when heads are firm and dense — press the top; it should feel solid with no give
- Cut at the base with a sharp knife, leaving a few outer wrapper leaves to protect the head
- Harvest after light frost for the sweetest flavor — don’t rush the fall harvest
- Store whole heads in a cool, humid environment — root cellar or refrigerator — for up to 3–4 months
- For sauerkraut, harvest at peak maturity and ferment immediately for best results
Order Today
Add Brunswick Heirloom Cabbage Seeds to your garden this season and grow one of the most storied and productive heirloom cabbages ever cultivated. Choose your pack size and begin to grow.
