Centaurea jacea
Brown knapweed, Brown-ray knapweed, Brownray knapweed
Centaurea Centaurea
C. jacea - C. jacea is a clump-forming, herbaceous perennial with lance-shaped, shallowly-lobed, grey-green leaves and, from early summer to early autumn, upright, branched stems bearing thistle-like, purple-pink flowers with narrow, tubular, fringed petals.
Centaurea jacea is: Deciduous
Clump-forming, Erect flower stem
Purple-pink in Summer; Purple-pink in Autumn
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
Generally pest free
Powdery mildew Powdery mildew
Deadhead to prolong the flowering season and to prevent unwanted seedlings.
Division, Seed
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Centaurea jacea (Brown knapweed) will reach a height of 0.6m and a spread of 0.45m after 1-2 years.
Coastal, Flower Arranging, Beds and borders, Containers, Wildflower, Wildlife
Best in well-drained, fertile soil in full sun. Tolerates dry, alkaline soil and neglect. Self-seeds readily so may become invasive. Considered an invasive species in North America.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Partial Shade, Full Sun
North, South, East, West
Exposed, Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Centaurea jacea
Brown knapweed, Brown-ray knapweed, Brownray knapweed
Centaurea Centaurea
C. jacea - C. jacea is a clump-forming, herbaceous perennial with lance-shaped, shallowly-lobed, grey-green leaves and, from early summer to early autumn, upright, branched stems bearing thistle-like, purple-pink flowers with narrow, tubular, fringed petals.
Deciduous
Clump-forming, Erect flower stem
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Purple-pink in Summer; Purple-pink in Autumn
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
Generally pest free
Deadhead to prolong the flowering season and to prevent unwanted seedlings.
Division, Seed
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Centaurea jacea (Brown knapweed) will reach a height of 0.6m and a spread of 0.45m after 1-2 years.
Coastal, Flower Arranging, Beds and borders, Containers, Wildflower, Wildlife
Best in well-drained, fertile soil in full sun. Tolerates dry, alkaline soil and neglect. Self-seeds readily so may become invasive. Considered an invasive species in North America.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained, Well-drained
Acid, Alkaline, Neutral
Partial Shade, Full Sun
North, South, East, West
Exposed, Sheltered
Hardy (H4)
Zone 9, Zone 8, Zone 7, Zone 6
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This plant likes... | Garden match | |
Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
Soil drainage: | Moist but well-drained, Well-drained | Tell us... |
Soil pH: | Acid, Alkaline, Neutral | Tell us... |
Light: | Partial Shade, Full Sun | Tell us... |
Aspect: | North, South, East, West | Tell us... |
Exposure: | Exposed, Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
Following the success of the gold medal winning L'Occitane Garden at the RHS Chelsea Flower Show last year, L'Occitane is delighted to return to Chelsea once again in 2016 with a new show garden to… read more
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