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White cabbage: from open leaves to a firm, round head

White cabbage lets you watch loose leaves gradually form a dense heart. It needs good soil, enough space and even growth. Choose an early head for fresh use or a confirmed late storage variety for autumn.

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Illustrative species image of witte kool
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Sowing
Spring, timed for early, autumn or storage variety
Harvesting
Summer to autumn; depends on cultivar
Location
Sun, fertile soil and even moisture
Space
According to variety: approximately 30–60 cm as a practical guide

This growing advice helps you choose. Your variety, growth stage, weather and conditions in your space determine the actual timing.

A good start

Sowing under cover and raising seedlings

Start under cover in cool conditions in modules or a seedbed · White cabbage

March–May, only for a suitable harvest typeSow somewhere cool and bright and avoid long, weak growth.

Germination and temperature
Germinate under cover, then grow on in cool, bright, well-ventilated conditions; avoid a hot growing space.
After emergence
Give seedlings light immediately after emergence. A dark loft needs suitable grow lights; warmth alone is insufficient. Ventilate and keep the compost moist without saturating it.
Pricking out and potting on
Sow in modules or prick out manageable young plants. Let the root ball firm up without a check in growth.
Hardening off and planting out
Gradually acclimatise indoor-raised plants to sun, wind and outdoor temperatures; shelter them again on cold nights. Plant out sturdy young brassicas and protect against cabbage root fly and caterpillars where needed.

Early, summer, autumn and winter cultivars have their own windows. The spring period shown is a basic route; use cultivar guidance for overwintering and winter cauliflower.

Sources and use

Royal Horticultural Society · RHS — kool kweken ↗Soort- of productgebonden bron; buitenlandse perioden zijn geen vaste Nederlandse zaaidatum.

University of Minnesota Extension · UMN Extension — kool in de moestuin ↗Soort- of productgebonden bron; buitenlandse perioden zijn geen vaste Nederlandse zaaidatum.

Guideline periods for the Netherlands and Flanders. Check the variety, available light, soil and measured temperatures. Greenhouse heating does not guarantee enough winter light.

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Familiar basics and unusual discoveries

A different flavour, a different harvest.

Choose by more than the name. Discover how these varieties and crop types taste, what you can use them for and what growing them involves.

1 of 1 choices · 1 named varieties

AI illustration of Brunswick
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Variety

Brunswick

Brunswick is a late white cabbage with broad, flat, large heads on a short stem. The exterior is described as green.

Choose this cultivar for a late, substantial cabbage harvest and possible processing. The name white cabbage does not mean the outer leaves have to be white.

Flavour, kitchen and growing

How does it taste?

The source gives no separate Brunswick aroma. Sauerkraut use and large head shape are concrete selection arguments.

This flavour description applies to the crop; there is no separate tasting result for this variety.

In the kitchen

Shred the cabbage for sauerkraut or use pieces in cooking. A large head needs a plan for several portions.

A space in the garden

Give the broad head enough room and keep development even. Reserve the bed for the longer growing period.

Harvesting

Harvest a closed, firm head and check that the inner leaves are healthy. Use a cut large cabbage promptly or plan fermentation in advance.

Also listed as: Witte kool uit Brunswick.

Read the source notes →
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How it could look in your garden

Choose your way to grow

From a garden bed to a suitable pot or support: give your plant a place that suits your garden and the care you can provide.

AI illustration of een krop per plant in een ruim bed
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

One head per plant in a spacious bed

In open ground, white cabbage has room to form a firm head. Do not plant extra closely to promise more yield: outer leaves need light to feed the heart.

  1. Start in modules or begin with healthy young plants.
  2. Plant in prepared soil at the cultivar’s spacing.
  3. Place insect mesh over hoops and seal the edges well.

For anyone able to reserve a cabbage bed for much of the season.

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AI illustration of een compact ras in een diepe pot
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

A compact cultivar in a deep pot

A demonstrably compact cabbage variety can grow in a large, deep pot. Soil and position are easier to choose, but water and feeding need more attention. A small balcony pot gives insufficient roots for a large cabbage.

  1. Choose a cultivar with confirmed compact growth.
  2. Use a deep pot with drainage holes and suitable compost.
  3. Check moisture regularly and allow light and air to the leaves.

For a small number of heads on a sunny patio.

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Netting works when the edges are closed too
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Take a closer look

Netting works when the edges are closed too

Put the netting over sturdy hoops and secure it to the ground all the way round. Leave room for growth and check underneath without leaving the sides open for long.

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Choose your harvest

Explore the varieties

See the confirmed differences. Characteristics without supporting evidence are left blank.

10 of 10 varieties

AI illustration of Cabbice
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Cabbice

Explore this variety and use the growing guide to choose a place for your plant.

View variety →
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AI illustration of Caraflex
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Caraflex

Explore this variety and use the growing guide to choose a place for your plant.

View variety →
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AI illustration of Caramba
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Caramba

Explore this variety and use the growing guide to choose a place for your plant.

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AI illustration of Duncan
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Duncan

Explore this variety and use the growing guide to choose a place for your plant.

View variety →
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AI illustration of Dutchman
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Dutchman

Explore this variety and use the growing guide to choose a place for your plant.

View variety →
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AI illustration of Elisa
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Elisa

Explore this variety and use the growing guide to choose a place for your plant.

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AI illustration of Monroo
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Monroo

Explore this variety and use the growing guide to choose a place for your plant.

View variety →
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AI illustration of Regency
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Regency

Explore this variety and use the growing guide to choose a place for your plant.

View variety →
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AI illustration of Sherwood
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Sherwood

Explore this variety and use the growing guide to choose a place for your plant.

View variety →
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AI illustration of Winterjewel
AI illustration

This image was created with AI from described plant characteristics and growing advice. It shows a possible situation and is not a photograph of a verified cultivar.

Winterjewel

Explore this variety and use the growing guide to choose a place for your plant.

View variety →
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Choose two to four varieties to compare their source data side by side.

Choose by flavour, shape and use

Brunswick: Brunswick is a late white cabbage with broad, flat, large heads on a short stem. The outside is described as green. Slice for sauerkraut or use parts cooked. A large head needs a plan for several portions.

The source gives no separate Brunswick aroma. Sauerkraut use and large head shape are concrete selection arguments.

A cabbage that suits your cooking

White cabbage suits a garden also growing for later use. A storage variety is a deliberate choice; an early variety gives fresh heads sooner. A few well-cared-for plants make development visible without a large field.

Sow for the intended harvest season

The same cabbage species can include early and late cultivars. Follow your cultivar's recommended sowing window and work in small batches. A late sowing of a long-season winter cultivar will not automatically catch up.

Sturdy plants in individual modules

Sow in clean seed compost and place emerged seedlings in good light. Keep the compost moist. An individual module gives each plant its own rootball. Move the plants before growth stalls for long in a cell that is too small.

Bring the soil into contact with the rootball

Acclimatise plants raised under cover to outdoor conditions. Plant in a sunny bed with good drainage and firm the soil around the rootball. Water to bring roots and soil into contact. Leave enough space for the mature leaves.

Support growth without waterlogging

Cabbages need fertile soil that retains moisture. Mature compost helps on poor or badly structured soil. Base additional feeding on the soil and product advice. Do not work wet clay into a compact, smooth planting hole where rainwater collects.

Even growth through to heart formation

Check the root zone more often during heart formation. Prolonged drought restricts development, while a sudden change to plentiful water may split vulnerable hearts. Water directly where needed during dry weather and retain an airy soil around the plant.

Avoid trapping the first caterpillars inside

Put insect mesh in place early and seal the edges, but also inspect beneath it. Mesh does not exclude a caterpillar already on a plant. Remove affected leaves and identify the pest before choosing a measure.

Consider all brassicas in your plan

Broccoli, cauliflower, Brussels sprouts and turnips also belong to the brassicas. Do not grow them in the same position every year. With clubroot, ordinary rotation is insufficient: have the cause assessed and use healthy starting material and a suitable growing position.

Feel the heart and look at the leaves

A closed, firm heart is a better signal than a fixed calendar day. Cut with a clean knife. Check splits and damage and use vulnerable heads first before setting intact storage heads aside.

Adapt storage to the cultivar

Store only intact heads of a suitable variety cool and inspect regularly. For sauerkraut or other fermentation, use a checked recipe and correct method. Leaving cabbage at room temperature is not a storage method.

Ready to begin

What you need

Tick what you already have. The extras depend on how you grow.

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Protection
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For growing in pots

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More background, sources and image information

SeedSteps editorial team · updated on 11 October 2026. The AI images illustrate species and practical growing situations; they do not prove an exact cultivar, observations from your own garden or yield.

Britse gewasadviezen worden gecombineerd met Nederlandse en Vlaamse informatie waar beschikbaar. Amerikaanse Extension-bronnen ondersteunen plantprincipes en herkenning; hun kalenderdata, lokale plaagdruk, bestrijdingsmiddelen en mestdoseringen worden niet rechtstreeks op Nederland of Vlaanderen toegepast. Vorst, bodemwarmte, standplaats en expliciete rasinformatie blijven de lokale controle. Commerciële bronnen onderbouwen uitsluitend benoemde ras- en plantkenmerken; zij zijn geen affiliate-aanbeveling.

  1. World Checklist of Vascular Plants — 4 juni 2026Royal Botanic Gardens, Kew · accessed 2026-10-07
  2. Witte kool uit Brunswick zadenFeggies · accessed 2026-10-11
  3. RHS — kool kwekenRoyal Horticultural Society · accessed 2026-10-10
  4. UMN Extension — kool in de moestuinUniversity of Minnesota Extension · accessed 2026-10-10
  5. USU Extension — kool in de tuinUtah State University Extension · accessed 2026-10-10

Supporting evidence by chapter: Choose by flavour, shape and use: Feggies. A cabbage that suits your cooking: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Sow for the intended harvest season: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Sturdy plants in individual modules: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Bring the soil into contact with the rootball: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Support growth without waterlogging: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Even growth through to heart formation: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Avoid trapping the first caterpillars inside: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Consider all brassicas in your plan: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Feel the heart and look at the leaves: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension. Adapt storage to the cultivar: Royal Horticultural Society, University of Minnesota Extension, Utah State University Extension.