Cordyline australis Black Knight
Cordyline australis Black Knight
Cordyline australis Black Knight
Cabbage Tree, Cabbage Palm
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This plant carries a 24 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.
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Description
With its resemblance to a palm, Cordyline australis 'Black Knight' fits in any garden, whether it's a small garden, an exotic flower bed, or a large container. It's the perfect plant for coastal gardens, as it is resistant to wind and salt spray. It is moderately hardy and thrives in a mild climate. Elsewhere, it can be grown in a pot. This bushy, perennial plant has long linear leaves that are slightly arched and deep burgundy to intense purple. It blooms in summer, producing huge panicles of white, fragrant flowers. These are followed by bluish-white fruits.
Cordyline australis belongs to the Agavaceae family and is endemic to New Zealand. In its natural habitat, this tree-like perennial plant can reach a height of 20m and forms a sturdy, branching trunk. Each tip forms a cluster of linear leaves that can grow up to 1m long. Cordyline australis can be found in diverse habitats, such as forest edges, riverbanks, and open areas, especially near marshes. The 'Black Knight’ variety stands out with its evergreen foliage, which is deep burgundy to dark and glossy purple. Its long, linear leaves are gathered in an elongated cluster, reaching between 1.5 and 2m in all directions. Over time, it forms a small tree with a single trunk and branches adorned with leafy clusters. The white flowers are nectar-rich and delicately scented, forming large, dense panicles measuring 60 to 100cm long. These are followed by non-edible berries measuring 5 to 7mm in diameter, loved by birds.
As it is resistant to wind and salt spray, it's the ideal plant for coastal gardens. The 'Black Knight’ Cordyline with its dark foliage is easy to combine in a flower bed. It can also be planted in a pot on a balcony or terrace, or as a standalone plant on a lawn in a small garden. In an exotic-looking flower bed, pair it with a red Abyssinian banana tree with lush, purple-tinged foliage, and add colour with the orange flowers of Kniphofia ‘Alcazar’, Croscomia ‘Carmine Brillant’, or Canna ‘Angélique’ with purple-violet foliage. In a container, create contrast by opting for a Delosperma Wheels of Wonder ‘Golden’ with a spreading habit and bright yellow flowers.
Plant habit
Flowering
Foliage
Planting and care
Cordyline australis 'Black Knight' thrives in full sun or sometimes in partial shade, sheltered from cold winds. Plant it in fertile, moist, and well-drained soil. It withstands winds and sea spray, making it a perfect plant for coastal gardens. It likes high summer temperatures and tolerates drought well. However, it does not like waterlogged soils. When planting in spring, add some sand. In winter, protect the top of the bush with a winter cover and mulch its base. It is moderately hardy (up to -7°C) and best grown in a pot in regions with cold winters. Cordyline does not require any specific pruning. Remove winter-damaged leaves and faded flowers once flowering is finished. Do not overwater, only water in case of drought.
Planting period
Intended location
Care
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).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
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 planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
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.
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