Knapweed

Centaurea macrocephala

Knapweed - Centaurea macrocephala

Common Name: Knapweed
Genus: Centaurea
Species: macrocephala

Category: Perennials
Growth Rate: Average
Features: Makes good cut flowers, Good for wildlife

Hardiness: HardyHeight: 1.50 m (150 cm)
Sun/Shade: Full sunSpread: 0.60 m (60 cm)

Foliage Type: DeciduousFlower Colour: Gold, Yellow
Foliage Colour: GreenFlowering Period: July & August

Soil Type: Sandy/Light or Chalky/Alkaline
Soil Moisture: Dry, well drained

Spectacular golden-yellow thistle like flowers on stiff stems in mid- and late summer and lance-shaped mid-green leaves. This bold plant is ideal for providing vertical interest in a sunny well-drained herbaceous border. Best on poor soil the dried seed heads are excellent for use in flower arrangements.

  • Garden care: Lift and divide large clumps every three years in spring.


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