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Knautia longifolia
Knautia longifolia
Knautia longifolia
Knautia longifolia
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Available in 2 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
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Dispatch by letter from €3.90.
Delivery charge from €5.90 Oversize package delivery charge from €6.90.
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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.
From €5.90 for pickup delivery and €6.90 for home delivery
Express home delivery from €8.90.
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Description
Knautia longifolia develops a vigorous stump that spreads with weakly running rootstocks. It forms a beautiful clump of single, unbranched stems bearing very long and narrow lanceolate leaves. This dark green and shiny foliage brings lightness to the plant. The small bluish-purple head-like flowers bloom in large numbers for a long period.
Knautia longifolia in pictures
Flowering
Foliage
Plant habit
Botanical data
Knautia
longifolia
Dipsacaceae
Cultivar or hybrid
Other Knautia
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 1 sizes
Available in 2 sizes
Planting and care
Very close to scabious, they are much more tolerant to moist soil than the latter, even though they love the sun and do not fear temporary drought. They tolerate both moist and dry soil, as well as sun and light shade. Very beautiful when paired with Lobelia x gerardii, Rudbeckia fulgida, or Heliopsis scabra.
Planting period
Intended location
Care
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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).
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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.