Kniphofia rooperi Cobra - Red Hot Poker
Kniphofia rooperi Cobra - Red Hot Poker
Kniphofia rooperi Cobra - Red Hot Poker
Kniphofia rooperi Cobra - Red Hot Poker
Kniphofia x rooperi Cobra
Red Hot Poker, Tritoma, Torch Lily, Poker Plant
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Available in 2 sizes
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This plant carries a 12 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
Kniphofia 'Cobra', also known as tritoma or red-hot poker, is a robust, compact, and floriferous variety whose beautiful floral spikes in warm shades attract attention without being overbearing. Its bell-shaped flowers are carried by tall stems and are grouped in dense inflorescences. They open in a lovely soft orange-copper tone with bronze reflections, slowly fade to pale-yellow, and ultimately end in a tender ivory hue, in a gradient from top to bottom of the spike. Its grass-like foliage and delicate silhouette provides structure to dense ensembles. It is an undemanding and cheerful perennial, to be planted in full sun, in well-drained soil.
Kniphofia 'Cobra' belongs to the Asphodelaceae family. This variety, like most of those we cultivate in our gardens, is a hybrid obtained by cross-breeding various species originating from South and East Africa, including K. rooperi, which it resembles. It is a perennial with fleshy rhizomes. It forms a slightly dishevelled upright tuft with tough grass-like leaves, reaching 50cm (20in) in height when flowering and 40cm (16in) in width. The flowering period is particularly long, occurring from June to September, rising well above the foliage, at 90cm (35in), on bare stems. The inflorescence, 20cm (8in) long, is nectar-rich and nectariferous. It is a dense terminal cluster of tubular and pendulous flowers, in a soft orange-copper colour that evolves over time to yellow, then cream and white. Each inflorescence remains decorative for more than 2 weeks. The medium green foliage is deciduous, composed of very long, very thin, somewhat sharp leaves, grouped in a spreading bunch.
Their exotic appearance already charmed our grandmothers. Tritomas are surprising plants, yet very sturdy. They light up any garden with their colourful torches. Kniphofia 'Cobra' is an elegant plant, tall enough to be placed among grasses. In our garden, it is planted among Deschampsia cespitosa and Stipa gigantea. It will also integrate well into a large rockery, paired with magenta red mallow, common sage, purple toadflax, and Anchusa azurea 'Loddon Royalist' with deep blue flowers. Tritomas complement light-flowering perennials well. They can also be planted in isolation, on a lawn, along a path mixing colours, or combined with bamboos, yuccas, cannas, and lobelias to create an exotic atmosphere.
Kniphofia rooperi Cobra - Red Hot Poker in pictures
Flowering
Foliage
Plant habit
Botanical data
Kniphofia
x rooperi
Cobra
Asphodelaceae
Red Hot Poker, Tritoma, Torch Lily, Poker Plant
Cultivar or hybrid
Planting and care
Plant Kniphofia 'Cobra' in any ordinary, well-drained, loose soil, in full sun. It particularly enjoys slightly loamy soils and dislikes waterlogged soils in winter. Ensure it does not lack water in summer, as this is when it needs it the most. Apply a thick layer of mulch around the stump to protect it during particularly cold winters. This plant tolerates wind and the specific conditions of the seaside. Apply organic fertiliser at the start of vegetation. Remove wilted stems and flowers at the end of autumn. This plant requires no further care.
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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