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giant knapweed

Latin name: Centaurea Macrocephala

Plant type: Herbaceous Perennial

Exposure: Exposed, Sheltered

Sun/shade: Full Sun, Partial Shade

Soil type: Chalk, Clay, Sand, Loam

Months of flowering: July, August, September

Soil pH: Acid, Neutral, Alkaline

Flower colours: Yellow

Petals: 7

Arrangement: Cluster