SuNutri
SuNutri
Cabbage
Intermediate

Cabbage

Brassica oleracea var. capitata

Family: Brassicaceae

Cabbage is a cold-hardy vegetable that forms tight heads of layered leaves. One of the oldest cultivated vegetables, cabbage is incredibly versatile and stores for months. From coleslaw to sauerkraut to stir-fries, cabbage is a kitchen staple.

Days to Harvest

60-180 days

Sun Needs

Full Sun (6+ hours)

Water Needs

high

Germination Temp

70°F optimal

Seed Starting

Start Indoors

6 weeks before last frost

Germination

4-10 days

Seed Depth

1/4 to 1/2 inch

Light to Germinate

No

đź’ˇ Tip: Start indoors for spring crop. For fall crop, start in mid-summer. Harden off thoroughly before transplanting.

Growing Conditions

Soil Type

Rich, well-draining soil with plenty of organic matter

pH Range

6 - 7.5

Spacing

12-18 inches between plants depending on head size desired

Companion Plants
âś“ Onionsâś“ Beetsâś“ Celeryâś“ Herbs (dill, chamomile)

⚠️ Avoid planting near:

âś— Strawberriesâś— Tomatoes
History & Nutrition

History

Cabbage's story is inseparable from European history, serving as a survival food that sustained civilizations through harsh winters, long sea voyages, and times of scarcity for over 4,000 years. Wild cabbage (Brassica oleracea) grows naturally along the chalk cliffs of the European Atlantic coast, and early cultivation likely began with Celtic peoples who brought the vegetable across the continent. Ancient Greeks believed cabbage had medicinal properties—Cato the Elder wrote extensively about its curative powers—and Greek physicians recommended it as a remedy for nearly everything from drunkenness to plague. The Romans adopted cabbage enthusiastically, developing early heading varieties and spreading cultivation throughout their empire. Medieval European peasants depended on cabbage for winter survival, fermenting it into sauerkraut to preserve the vitamin C content that prevented scurvy. This fermented cabbage became crucial for explorers: Captain James Cook credited sauerkraut with keeping his sailors healthy during long Pacific voyages, and German immigrants brought sauerkraut culture to America, establishing cabbage as a foundational crop. Korean kimchi, developed independently from Chinese cabbage varieties, represents another great fermented cabbage tradition. Cabbage accompanied nearly every wave of European immigration to America—Irish colcannon, German sauerkraut, Polish golabki (stuffed cabbage), and Russian borscht all crossed the Atlantic with their respective communities. The "cabbage patch" became synonymous with humble beginnings, yet the vegetable's role in human nutrition and survival is anything but humble. Today, China produces more than half the world's cabbage, and the vegetable remains essential to cuisines from Korea to Brazil.

Nutritional Benefits

  • âś“High in Vitamin C
  • âś“Good source of Vitamin K
  • âś“Contains fiber
Climate & Temperature

Optimal Growing Temp

60°F - 70°F

Cabbage thrives in cool temperatures between 60-70°F. Can tolerate light frosts and even temperatures near freezing once established. Growth slows above 80°F and heads may split in heat.

Survival Range

38°F - 80°F

Can survive these temperatures

hardy
cool Season

Frost Note: Mature cabbage is very frost-tolerant, surviving temperatures down to 20°F. Frost actually improves flavor by converting starches to sugars. Young transplants need protection from hard freezes.

Best USDA Zones

Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9

Humidity

50-70%

Moderate humidity is ideal. High humidity combined with poor air circulation increases risk of fungal diseases like black rot and downy mildew.

Plant Size & Growth

Height

12-18 inches

Spread

18-24 inches

Growth Habit

upright

biennialRoot Depth: Cabbage develops a shallow to moderate root system, with most roots in the top 12-18 inches but extending wider than the plant canopy.
Growth Stages

Germination

4-10 days

Seeds germinate at 45-85°F, with optimal temperature of 70°F. Cotyledon leaves emerge within a week under ideal conditions.

Seedling Stage

Duration: 4-6 weeks

True leaves: First true leaves appear 7-10 days after sprouting with characteristic cabbage shape

Transplant ready: Ready to transplant when 4-6 inches tall with 4-5 true leaves. Harden off for 7-10 days before outdoor transplanting.

Vegetative Growth

Duration: 6-10 weeks after transplant

Cabbage develops a rosette of outer leaves that capture sunlight and feed the developing head. This stage is critical for building the leaf mass that will eventually form the tight head.

Harvest Maturity

Timing: 60-180 days from transplant depending on variety

  • Head is firm and solid when squeezed
  • Head has reached expected size for variety
  • Outer wrapper leaves may begin to yellow slightly
  • Head feels dense and heavy for its size
Expected Yield

Per Plant

2-8 lbs per head depending on variety

Per Square Foot

1-2 lbs per square foot with proper spacing

Harvest Frequency

One head per plant. Early varieties may produce small secondary heads if stump is left.

Factors Affecting Yield

  • •Cool temperatures during heading produce tighter, larger heads
  • •Consistent moisture prevents splitting and promotes solid heads
  • •Adequate spacing allows for larger head development
  • •Variety selection - early varieties produce smaller heads, storage varieties produce larger heads
  • •Soil fertility - heavy feeders need rich soil for maximum size
  • •Timing - fall crops often produce better quality than spring crops
Watering Guide

Seedling Stage

Keep consistently moist, water daily in warm weather

Established Plants

1-2 inches per week, deep watering every 3-5 days

During Fruiting

Critical to maintain even moisture during heading - fluctuations cause splitting

Preferred Method

Drip irrigation or soaker hoses preferred. Water at soil level to keep foliage dry. Deep, infrequent watering better than frequent shallow watering.

⚠️ Critical Watering Periods

  • • Head formation
  • • Head maturation

Pro Tips

  • Mulch heavily (3-4 inches) to maintain consistent moisture
  • Never let plants completely dry out during heading
  • Reduce watering slightly as heads near maturity to prevent splitting
  • In rainy periods, twist plant to break some roots and slow water uptake
Fertilizing Guide
heavy feederRecommended: High nitrogen (10-6-4) during vegetative growth, balanced (10-10-10) during heading

Feeding Schedule

At Transplanting

Balanced fertilizer with compost

Once at planting

Vegetative Growth

High nitrogen (10-6-4 or blood meal)

Every 3-4 weeks

Head Formation

Balanced (10-10-10)

Every 3-4 weeks

Head Maturation

Reduce feeding 3-4 weeks before harvest

Stop fertilizing

Organic Options

CompostWell-rotted manureBlood mealFish emulsionAlfalfa meal

Side-dress with compost every 3-4 weeks. Apply blood meal or fish emulsion for nitrogen boost. Add lime if soil pH is low.

Container Growing
âś“ Suitable for containers

Minimum Size

5 gallon minimum

Recommended Size

10-15 gallon for full-sized heads, 3-5 gallon for mini varieties

Depth Required

At least 12 inches deep

Best Varieties for Containers

Golden AcreGonzalesPixie

Container Tips

  • Choose compact varieties like Golden Acre or Early Jersey Wakefield
  • Use rich potting mix amended with compost
  • Containers need daily watering in warm weather
  • Feed every 2-3 weeks with balanced liquid fertilizer
  • Position where plants receive full sun in spring/fall
Succession Planting

Plant Every

2-3 weeks

Sowings/Season

2-3 varieties (early, mid-season, storage) for extended harvest

Duration

Spring: start 6-8 weeks before last frost. Fall: start in mid-summer

Tips

  • Plant early, mid-season, and late varieties all at once for staggered harvest
  • Or succession plant same variety every 2-3 weeks
  • Fall crops are easier and produce better quality in most climates
  • In mild climates, can plant late summer through fall for winter/spring harvest
Frequently Asked Questions

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