How to Grow Sweetheart Cabbage
Sweetheart Cabbage
Brassica oleracea var. capitata
vegetableSweetheart is a pointed-head cabbage variety with a conical shape and tender, sweet leaves. It matures relatively quickly compared to round cabbage types and is prized for its mild flavor and crisp texture. This cool-season crop is excellent for fresh eating, slaws, and cooking.
When should you plant Sweetheart Cabbage in your zone?
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Example Sweetheart Cabbage timeline · Pittsburgh, PA (Zone 6b)
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Plant Sweetheart Cabbage
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Sweetheart Cabbage
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Sweetheart Cabbage dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-9; best in cool seasons (spring and fall in warmer climates)
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Get my Sweetheart Cabbage timeline →Growth Stages
Seedling
3-4 weeksTiny plants with 2-4 true leaves, pale green coloring
Keep soil consistently moist but not waterlogged. Provide bright light and good air circulation to prevent damping-off. Begin fertilizing weakly at 2-3 weeks old.
Vegetative Growth
2-3 weeksRapid leaf production with visible rosette formation; plant develops stronger stems and deeper green color
Apply consistent fertilizer every 2-3 weeks. Maintain steady moisture. Begin hardening off transplants 1 week before planting outdoors. Thin seedlings to proper spacing.
Head Formation
3-4 weeksLeaves begin curling inward and tightening to form the characteristic pointed head; head becomes increasingly compact and firm
Continue regular watering and feeding. Apply mulch to retain moisture and regulate soil temperature. Remove any yellowed outer leaves. Monitor for pests weekly.
Maturation
2-3 weeksHead becomes dense and firm to finger pressure; outer leaves are thick and waxy; pointed cone shape is fully developed
Reduce nitrogen fertilizer to avoid overgrowth. Water deeply but less frequently. Check firmness daily by gently pressing head. Protect from late frosts if needed.
Harvest-Ready
Variable; harvest window is 1-2 weeksHead is fully formed, firm throughout, and reaches optimal size; leaves are tight and crisp
Harvest when head feels solid and before temperatures exceed 75°F if possible, as heat causes bolting and bitterness. Use sharp knife to cut at base.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Handpick larvae, use Bacillus thuringiensis (Bt), apply neem oil, or use floating row covers on seedlings
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Use row covers, handpick yellow eggs from leaf undersides, apply Bt, or use netting
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Spray with strong water stream, use insecticidal soap, apply neem oil, or introduce ladybugs
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Use row covers on young plants, apply diatomaceous earth, use kaolin clay spray, or grow trap plants like radishes
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Place cardboard collars around seedlings, remove debris, apply beneficial nematodes, or sprinkle diatomaceous earth
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Use row covers, apply beneficial nematodes to soil, use tarpapers around base, or practice crop rotation
Uses
Fresh eating and slaws
CulinarySweetheart cabbage's tender, mild leaves make it ideal for fresh coleslaw, salads, and raw preparations. Its crisp texture holds up well in vinegar-based dressings. [source]
Cooking and soups
CulinaryThe pointed leaves cook quickly and become tender, making it excellent for stir-fries, soups, braised dishes, and traditional stuffed cabbage recipes. Its sweetness deepens when cooked. [source]
Health and nutrition
MedicinalHigh in vitamin C, fiber, and glucosinolates that support digestive health and have anti-inflammatory properties. Traditional use includes cabbage poultices for bruising and swelling. [source]
Food preservation
HouseholdSweetheart cabbage stores exceptionally well in cool conditions and is ideal for fermentation into sauerkraut and kimchi, which enhance nutritional bioavailability. [source]
Attracting beneficial insects
WildlifeCabbage plants attract hoverflies and parasitic wasps that prey on garden pests. Allowing some flowers to bloom attracts pollinators and beneficial insects. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest when heads are firm and reach 4-6 inches in diameter, before temperatures consistently exceed 75°F. Cut the entire head at the base with a sharp knife. For cut-and-come-again harvesting, remove outer leaves while allowing the inner head to continue developing. Best harvested in cool morning hours. Can be stored in cool conditions (32-40°F) for several weeks; keep outer leaves intact for longer storage.
Fun Facts
- 🌱 Sweetheart cabbage gets its name from its heart-shaped pointed head, which makes it distinctly different from the round-headed varieties common in North America.
- 🌱 Cabbage has been cultivated for over 2,500 years and was used by ancient Romans and Egyptians as a remedy for various ailments, long before vitamins were discovered.
- 🌱 A single Sweetheart cabbage plant produces one main head, but if left in the ground after cutting, it can produce several smaller secondary heads from the base.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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