How to Grow Sweetheart Cabbage
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Sweetheart Cabbage
Brassica oleracea var. capitata
vegetableSweetheart cabbage is a compact, pointed-head cabbage variety known for its tender, sweet leaves and small to medium size. It matures relatively quickly and is prized for its mild flavor and delicate texture, making it ideal for fresh eating, slaws, and salads.
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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 2-8; prefers cool seasons
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Seedling
2-3 weeksTiny cotyledons emerge; first true leaves appear within 5-7 days. Plant is very delicate.
Keep soil consistently moist. Provide bright light to prevent legginess. Thin seedlings to strongest plants. Maintain temperature around 60-70°F.
Vegetative Growth
3-4 weeksTrue leaves expand rapidly, forming a rosette. Plant develops 6-10 leaves before compact head formation begins.
Thin or transplant to proper spacing. Fertilize every 2-3 weeks with balanced fertilizer. Keep soil moist and mulch around base. Monitor for pests.
Head Formation
3-4 weeksCenter leaves begin to curl inward, forming the characteristic pointed head. Head gradually becomes denser and firmer.
Maintain consistent watering to prevent splitting. Apply side-dressing of compost or balanced fertilizer. Remove any damaged outer leaves. Reduce nitrogen if overfeeding.
Maturation
2-3 weeksHead becomes fully formed, compact, and dense. Outer leaves tighten. Head feels firm and solid when gently pressed.
Continue regular watering. Check head firmness weekly by gentle pressure. Harvest when heads reach desired size (3-5 lbs typical). Do not over-fertilize.
Harvest
Harvest window: 1-2 weeksHead is fully mature, dense, and ready for cutting. Interior leaves are tender and pale green.
Cut head at base with sharp knife, leaving outer wrapper leaves if desired. Harvest in early morning for crispest texture. Can store for several weeks in cool conditions.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Row covers during planting; Bacillus thuringiensis (Bt) spray; hand-pick green caterpillars; encourage natural predators
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Bt spray; neem oil; spinosad; row covers; handpicking
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Row covers; diatomaceous earth; neem oil spray; reflective mulch
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Strong water spray; insecticidal soap; neem oil; encourage beneficial insects
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Crop rotation; raise soil pH above 7.0; remove infected plants; use resistant varieties
Uses
Fresh Eating & Slaws
CulinarySweetheart cabbage is excellent raw in slaws, salads, and coleslaw due to its tender, sweet leaves and mild flavor. Its delicate texture makes it superior to storage cabbage varieties for fresh applications. [source]
Cooking & Braising
CulinaryThe leaves cook quickly and become tender without becoming mushy. Sweetheart cabbage is ideal for stir-fries, braises, soups, and steamed dishes. [source]
Nutritional & Anti-inflammatory Properties
MedicinalCabbage is rich in vitamin C, vitamin K, and glucosinolates with anti-inflammatory and potential anti-cancer properties. Fermented cabbage (sauerkraut, kimchi) supports gut health. [source]
Traditional Remedy & Poultice
HouseholdCabbage leaves have been used traditionally as a poultice for inflammation, wounds, and bruising, though scientific evidence is limited. [source]
Pollinator & Beneficial Insect Support
WildlifeIf allowed to bolt and flower (rarely in sweetheart varieties), cabbage flowers attract bees and beneficial insects. Bolted plants support wildlife biodiversity. [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 dense, typically 60-90 days after planting. Heads are usually 3-5 lbs and 4-5 inches tall. Test firmness by squeezing gently—head should feel solid. Cut at the base with a sharp knife in early morning for best texture and moisture content. Can be left in ground for weeks if needed in cool weather. Store in cool, humid conditions (32-40°F) for up to 2-3 months.
Fun Facts
- 🌱 Sweetheart cabbage is a relatively modern variety development, popularized in the 20th century, with origins in Northern Europe. Its compact, pointed shape makes it visually distinctive and easier to store than round cabbage heads.
- 🌱 Cabbage is over 99% water, yet it's extremely nutrient-dense. A single 3-5 lb head can provide weeks of salads and side dishes for a family.
- 🌱 Sweetheart cabbage can be succession planted every 2-3 weeks from early spring through late summer, allowing gardeners to harvest fresh heads over an extended season. In cool climates, fall-planted heads often taste sweetest after a light frost.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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