Daubenton's Perpetual Cabbage plant - Brassica oleracea ramosa
Daubenton's Perpetual Cabbage plant - Brassica oleracea ramosa
Brassica oleracea var. ramosa Daubenton
Daubenton Kale
A magnificent plant a few months on!
Déborah, 19/06/2025
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Available in 1 sizes
This plant carries a 6 months recovery warranty
More information
We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
Description
The perpetual Daubenton Kale, in Latin Brassica oleracea var. ramosa 'Daubenton', is a perennial cabbage that does not form a head and rarely flowers. It is cultivated for its young shoots which have a flavour similar to broccoli. They can be consumed raw or cooked and can be prepared in various ways. Hardy and not very susceptible to cabbage white butterflies and flea beetles, this cabbage is ideal for permaculture and can last for several years. As beautiful as it is tasty, Daubenton cabbage is an ancient vegetable that is making a comeback in vegetable gardens, as well as in flower beds. It can be easily grown in any rich, deep soil, even very clayey soil, without drying out in the summer.
Like other cabbages, perpetual cabbage belongs to the Brassicaceae family (formerly Cruciferae). It has a bushy habit over time, with the plant reaching about 90 cm (35in) in all directions. It is a perennial herbaceous plant, resistant to frost and evergreen in winter. Its lifespan is around 5 to 7 years. Perpetual cabbage does not form a head, but it produces lateral shoots. These young shoots have a taste similar to broccoli and can be consumed raw or cooked. They can be prepared in various ways: in gratins, soups, sauces, stir-fries, stews, or salads. In the vegetable garden, plant perpetual cabbage near mint or lettuce and keep it away from alliums and other cabbages. One remarkable advantage is that it is not very susceptible to cabbage white butterflies and flea beetles.
The stems of this cabbage easily branch out from the axils of the leaves, and over time, the plant forms a beautiful mass of bluish-green and frizzy leaves. The base of the stems becomes woody and hard with age. This Daubenton variety has the advantage of not flowering, which allows it to live for several years. Indeed, the wild form Brassica oleracea ramosa which flowers in its second year is a biennial plant that dies after producing its seeds.
Harvesting : from the 2nd year onwards, pick the shoots growing on the stems as needed, from September to May. However, the leaves will be the most tender in spring. Harvest regularly to promote a compact habit and the production of new leaves.
Storage : consume the leaves quickly after harvesting. However, you can store them in the refrigerator for a few days.
Gardener's tip : to limit watering, we recommend mulching the soil with thin layers of grass clippings, if possible mixed with dead leaves. This protection, which keeps the soil moist, provides nitrogen to the plant as it decomposes while also reducing the need for weeding.
Daubenton's Perpetual Cabbage plant - Brassica oleracea ramosa in pictures
Harvest
Plant habit
Foliage
Planting and care
The perpetual Daubenton Kale appreciates rich, deep soils that remain slightly moist. It adapts well to clay and heavy soils, whether they are acidic or alkaline. It thrives in sunny locations. Add well-rotted compost in the autumn prior to planting, by scratching it into the soil to a depth of 5 cm (2in), after loosening the soil.
Planting takes place in spring, in April-May.
Dig a hole (3 times the volume of the root ball), place the root ball and cover it with soil. Firmly press down and water to keep the soil moist. Space the plants 1 m (3ft) apart in all directions. Regularly water at the base, but without excess. Install mulch around the base of the plants to conserve water and limit weeding. Add compost on the surface every autumn. Prune in winter.
Perpetual kage naturally propagates through layering. You can also take cuttings in summer, which may be useful if the winter is particularly harsh.
Cultivation
Care
Intended location
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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