Echinacea purpurea Red Knee High - Purple Coneflower
Echinacea purpurea Red Knee High - Purple Coneflower
Echinacea purpurea Red Knee High
Purple Coneflower, Eastern Purple Coneflower
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Available in 3 sizes
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Available in 3 sizes
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This plant carries a 12 months recovery warranty
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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
Echinacea 'Red Knee High' is an almost-red flowered version of 'Kim's Knee High', which blooms from mid to late summer at knee height. With its large flower heads in bright magenta-red with a pretty bright orange and brown tinged cone, this variety enlivens sunny borders or flower pots like few perennials can. It is also a very robust plant, which adapts to difficult conditions, tolerating occasional intense heat, humidity, and drought. It can even grow in poor soils.
Native to the western United States, Echinacea purpurea is a perennial with a strong character which confidently colonizes rocky meadows, savannas, clear undergrowth, and roadside edges in its natural environment. 'Red Knee High' is a shorter, very colourful form of this formidable pioneer. It has a dense and sturdy clump-like habit, reaching 60 cm (24in) high and 40-45 cm (16-18in) wide. This plant shows very good resistance to bad weather. The 15 cm (6in) long green leaves are covered in rough hairs. The flowering period lasts from July to the end of summer and is very popular with butterflies. The green flower stalks tinged with red are each topped with a solitary large flower head measuring 6-8 cm (2-3in) in diameter, with a large, fairly flat central disc, like a pompom of tiny florets, burnt orange on the periphery and darker in the centre. The petals or 'ligules' are arranged in a collar around this cone, elongated, drooping, and intensely pink-red. The fruit is an achene that releases seeds which birds love. This plant firmly and deeply anchors itself in the soil with its highly developed root system.
Echinacea 'Red Knee High' has truly vibrant flowers, shining brightly under the July sun, and very pleasant to behold on slightly misty days at the beginning of autumn. It is used in border plantings mixed with other flowers that contrast in shape or colour (perennial or shrubby salvias, perennial flax, daylilies, catmints), or with inulas, asters, yarrows, daisies, Echinops. Echinaceas are particularly complementary to ornamental grasses like Stipa tenuifolia, Muhlenbergia capillaris, Eragrostis spectabilis... Gorgeous in borders, the beautiful colour of 'Red Knee High' is also stunning in large pots on the terrace and fresh or dried flower bouquets.
Echinacea purpurea Red Knee High - Purple Coneflower in pictures
Flowering
Foliage
Plant habit
Botanical data
Echinacea
purpurea
Red Knee High
Asteraceae
Purple Coneflower, Eastern Purple Coneflower
Cultivar or hybrid
Planting and care
Echinacea purpurea takes time to establish itself as its growth is rather slow. However, once in place it requires no particular care and is highly resistant to pests and diseases. It is best planted in spring, in a sunny location, in a mixture of compost and garden soil. The soil should be deep and loose to accommodate its root system, but it hates soil waterlogged in winter. Remove faded flowers as they appear. Divide the clump when flowering slows down. It is a rhizomatous plant that can become invasive. As the plant ages, it becomes more susceptible to aphids and powdery mildew. Mulch the base in May to keep it moist in summer, as it dislikes drought during flowering.
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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