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Vegetable
Brassicaceae
Organic seeds
Les jardins de l'écoumène
Brassica oleracea ‘Copenhagen’
Brassica oleracea var. capitata
Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate. The compact, low-growing habit helps the plants stand well in the garden, including smaller spaces, while still producing cabbage heads that are heavy and firm. Their mild, slightly sweet flavour is enjoyable in a wide range of kitchen preparations, whether the cabbage is served raw, cooked slowly or prepared for fermentation. Vigorous and well suited to family vegetable gardens, the plants grow steadily in rich, moisture-retentive soil, where regular watering helps their heads become tight and well filled. If a few plants remain in the garden until their second year, their yellow flowers attract many pollinating insects and bring another kind of activity to the planting.
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Discover the plant
Common nameCopenhagen Cabbage
FamilyBrassicaceae
GenusBrassica
Speciesoleracea
CultivarCopenhagen
TypeVegetable
Botanical nameBrassica oleracea var. capitata
Reproducible seedsYes
Heirloom varietyYes
Brassica oleracea ‘Copenhagen’ — Copenhagen Cabbage. Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate. The compact, low-growing habit helps the plants stand well in the garden, including smaller spaces, while still producing cabbage heads that are heavy and firm. Their mild, slightly sweet flavour is enjoyable in a wide range of kitchen preparations, whether the cabbage is served raw, cooked slowly or prepared for fermentation. Vigorous and well suited to family vegetable gardens, the plants grow steadily in rich, moisture-retentive soil, where regular watering helps their heads become tight and well filled.
Sowing cabbage seeds: 4 to 6 weeks before the last frost. The depth to be respected is 1 cm (0.4 in.). Germination usually takes 3 to 7 days. For germination, keep the soil at 18 to 22°C (64 to 72°F). Young cabbages require light to form short, vigorous plants. Transplant before the roots become crowded, then gradually harden off the plants to outdoor conditions. Plant them in prepared soil that retains consistent moisture around the roots. Avoid crowding the plants because they are small at first: mature foliage takes up much more space as the crop develops.
Plant cabbages in rows with enough space to inspect the base and centre of each plant. As the plants grow, their foliage will cover much of the soil surface, so weed the bed early while you can still reach between the plants easily. Avoid placing small, fragile crops directly under their leaves. Well-spaced planting also makes it easier to install protective netting and cut mature cabbage heads or stems at harvest. Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate.
In the garden
- Exposure
- Full sun
- Life cycle
- Biennial grown as an annual for harvest
Sowing guide
Sowing & germination
Sowing depth
1 cm (0.4 in)
Germination temperature
18 to 22°C (64 to 72°F)
Germination time
3 to 7 days
Sowing period
4 to 6 weeks before the last gel
Propagation
From seed
Growing method
Recommended planting period: 4 to 6 weeks before the last frost. The depth to be respected is 1 cm (0.4 in.). Germination usually takes 3 to 7 days. For germination, keep the soil at 18 to 22°C (64 to 72°F). Young cabbages require light to form short, vigorous plants. Transplant before the roots become crowded, then gradually harden off the plants to outdoor conditions. Plant them in prepared soil that retains consistent moisture around the roots. Avoid crowding the plants because they are small at first: mature foliage takes up much more space as the crop develops. Inspect cabbage leaves, especially their undersides, for early signs of eggs, caterpillars or feeding damage. Suitable insect netting can help protect the foliage while still allowing air and light to pass through. Leave enough access to inspect the centre of the plant or its developing head. Plan to harvest while the edible parts are still at the desired stage, before they harden or open. Use a clean knife to cut without tearing the foliage you want to keep. Monitor brassica crops closely from the time they are planted in the garden.
Soil and care
Soil & care
Watering
Keep the soil consistently moist while the plants become established and while the part you intend to harvest is developing. Water at the base of the plant, providing enough to moisten the root zone, then allow the excess water to drain away. A layer of mulch can help limit drying between waterings, provided it is kept away from direct contact with the stems. Check plants growing in containers more frequently, because their potting mix can dry out quickly. Reduce watering after rainfall and avoid leaving the roots in soil that remains constantly saturated with water.
Soil type
Prepare a rich, moist, well-drained soil. Young cabbages require light to form short, vigorous plants. Transplant before the roots become crowded, then gradually harden off the plants to outdoor conditions. Plant them in prepared soil that retains consistent moisture around the roots. Avoid crowding the plants because they are small at first: mature foliage takes up much more space as the crop develops.
Fertilization
Fertilization supports growth and should take into account the nutrients already present in the soil or potting mix. Use mature compost or a fertilizer suitable for the crop, following the recommended application rate. Avoid combining too many products, especially in a container where the roots have a limited volume of growing medium. Water as needed after applying nutrients, and observe foliage growth before deciding whether another fertilizer application is necessary.
Moisture
Keep the growing mix moist during germination, without standing water; then adjust to the crop
Seasonal care
Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate. Young cabbages require light to form short, vigorous plants. Transplant before the roots become crowded, then gradually harden off the plants to outdoor conditions. Plant them in prepared soil that retains consistent moisture around the roots. Avoid crowding the plants because they are small at first: mature foliage takes up much more space as the crop develops. Inspect cabbage leaves, especially their undersides, for early signs of eggs, caterpillars or feeding damage. Suitable insect netting can help protect the foliage while still allowing air and light to pass through. Leave enough access to inspect the centre of the plant or its developing head. Plan to harvest while the edible parts are still at the desired stage, before they harden or open. Use a clean knife to cut without tearing the foliage you want to keep. Monitor brassica crops closely from the time they are planted in the garden. Check the undersides of the leaves for small caterpillars and the first signs of feeding damage. Netting put in place early can protect the crop, provided it leaves enough room for the foliage to grow. Close the edges well after treatment, without blocking the leaves against the mesh. Their mild, slightly sweet flavour is enjoyable in a wide range of kitchen preparations, whether the cabbage is served raw, cooked slowly or prepared for fermentation. Recommended planting period: 4 to 6 weeks before the last frost.
Container growing
Container growing
Suitable for containers
Yes
Recommended pot size
A stable container with drainage holes, enough width for the plant’s spread and sufficient depth for its roots
Choose a location in full sun. Reserve this spread around the plant: 45 to 60 cm (18 to 24 in). In a container, give each cabbage enough space so that its foliage is not pressed against the leaves of a neighbouring plant. The pot should remain stable as the part you intend to harvest grows larger and heavier. Keep the root ball evenly moist and check the undersides of the leaves when watering the plants. Choose the container according to the plant’s mature size, even if the young plant still looks small when it is time to pot it up. Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate. The compact, low-growing habit helps the plants stand well in the garden, including smaller spaces, while still producing cabbage heads that are heavy and firm. Their mild, slightly sweet flavour is enjoyable in a wide range of kitchen preparations, whether the cabbage is served raw, cooked slowly or prepared for fermentation. Vigorous and well suited to family vegetable gardens, the plants grow steadily in rich, moisture-retentive soil, where regular watering helps their heads become tight and well filled. If a few plants remain in the garden until their second year, their yellow flowers attract many pollinating insects and bring another kind of activity to the planting.
Bloom and dimensions
Size, flowering & harvest
Mature height
40 to 50 cm (16 to 20 in)
Width / spread
45 to 60 cm (18 to 24 in)
Foliage type
Seasonal foliage
Growth habit
Compact
Bloom period
This plant normally forms its flowers during a cycle subsequent to that of the first vegetable harvest. For the production of leaves, bulbs or roots, flowering is not the desired stage. Bolting before the intended harvest can reduce the tenderness of the parts you plan to eat. Keep plants intended for seed production separate from those grown for harvest, allowing enough room for their developing flower stems.
Fruiting
Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate. Their mild, slightly sweet flavour is enjoyable in a wide range of kitchen preparations, whether the cabbage is served raw, cooked slowly or prepared for fermentation. Monitor brassica crops closely from the time they are planted in the garden. Check the undersides of the leaves for small caterpillars and the first signs of feeding damage.
Harvest
65 days after sowing
Garden associations
Companion plants & uses
Companion plants
In a mixed planting, you can reserve sections close to these plants: beet, celery, onion, lettuce. The association is used here to organize space and crops. Allow for the height, light requirements and water needs of each plant, leaving enough room between the foliage. Keep a path clear for watering and harvesting, then remove finished crops to make room for the next planting. This arrangement makes maintenance easier without promising protection against garden pests. Plant cabbages in rows with enough space to inspect the base and centre of each plant.
Garden use
Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate. Their mild, slightly sweet flavour is enjoyable in a wide range of kitchen preparations, whether the cabbage is served raw, cooked slowly or prepared for fermentation. The compact, low-growing habit helps the plants stand well in the garden, including smaller spaces, while still producing cabbage heads that are heavy and firm. Vigorous and well suited to family vegetable gardens, the plants grow steadily in rich, moisture-retentive soil, where regular watering helps their heads become tight and well filled.
Recipe idea
From garden to table
Edible parts
Sheets
Recipe idea using Copenhagen Cabbage: vegetable stir-fry for four servings. Prepare 400 g of the harvested part, a clove of garlic, 15 ml of oil and 30 ml of water. Cut stems, leaf ribs or other firm parts into small pieces, and set the leaves aside to add separately. Heat the oil, sauté the garlic without burning it, then add the firm pieces and water. Cover for a few minutes. Then add the leaves or other tender parts and continue cooking until they reach the texture you prefer. Season to taste and serve hot. Prepare the ingredients with clean utensils and adapt the cut to the size of your harvest. This recipe highlights freshly picked parts: remove damaged pieces before preparation. If you double the quantities, keep enough space in the dish to mix or cook evenly. Quickly place leftovers in the refrigerator in a closed container and consume them within two days. For a two-person meal, simply divide all quantities by two.
Frequently asked questions
Frequently asked questions
How do I grow Copenhagen Cabbage from seed?
Recommended planting period: 4 to 6 weeks before the last frost. The depth to be respected is 1 cm (0.4 in.). Germination usually takes 3 to 7 days. For germination, keep the soil at 18 to 22°C (64 to 72°F). Young cabbages require light to form short, vigorous plants. Transplant before the roots become crowded, then gradually harden off the plants to outdoor conditions. Plant them in prepared soil that retains consistent moisture around the roots. Avoid crowding the plants because they are small at first: mature foliage takes up much more space as the crop develops.
Can I grow Copenhagen Cabbage in a container?
Choose a location in full sun. Reserve this spread around the plant: 45 to 60 cm (18 to 24 in). In a container, give each cabbage enough space so that its foliage is not pressed against the leaves of a neighbouring plant. The pot should remain stable as the part you intend to harvest grows larger and heavier. Keep the root ball evenly moist and check the undersides of the leaves when watering the plants. Choose the container according to the plant’s mature size, even if the young plant still looks small when it is time to pot it up. Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate.
When can I harvest Copenhagen Cabbage?
Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate. Their mild, slightly sweet flavour is enjoyable in a wide range of kitchen preparations, whether the cabbage is served raw, cooked slowly or prepared for fermentation. Monitor brassica crops closely from the time they are planted in the garden. Check the undersides of the leaves for small caterpillars and the first signs of feeding damage. Netting put in place early can protect the crop, provided it leaves enough room for the foliage to grow. Close the edges well after treatment, without blocking the leaves against the mesh. Inspect cabbage leaves, especially their undersides, for early signs of eggs, caterpillars or feeding damage.
What makes Copenhagen Cabbage distinctive in the garden?
Its round, dense and evenly shaped heads provide a harvest that is both attractive and generous, with the consistency and ease of growing that gardeners appreciate. The compact, low-growing habit helps the plants stand well in the garden, including smaller spaces, while still producing cabbage heads that are heavy and firm. Their mild, slightly sweet flavour is enjoyable in a wide range of kitchen preparations, whether the cabbage is served raw, cooked slowly or prepared for fermentation. Vigorous and well suited to family vegetable gardens, the plants grow steadily in rich, moisture-retentive soil, where regular watering helps their heads become tight and well filled. If a few plants remain in the garden until their second year, their yellow flowers attract many pollinating insects and bring another kind of activity to the planting.
How do I arrange a planting of Copenhagen Cabbage?
Plant cabbages in rows with enough space to inspect the base and centre of each plant. As the plants grow, their foliage will cover much of the soil surface, so weed the bed early while you can still reach between the plants easily. Avoid placing small, fragile crops directly under their leaves. Well-spaced planting also makes it easier to install protective netting and cut mature cabbage heads or stems at harvest. Inspect cabbage leaves, especially their undersides, for early signs of eggs, caterpillars or feeding damage. Suitable insect netting can help protect the foliage while still allowing air and light to pass through.
Outils
Compostage et écologie
