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Bloom time: Late spring through late summer.
Centaurea is a genus of as many as 600 weedy plants grouped under the common name, Knapweed. These relatives of the thistle family have a host of common names, themselves, including basket flower, bachelor's buttons, starthistle, cornflower, and many others. The Centaurea varieties we grow in the flower bed are not weeds, but may self-sow. The flowers produce abundant nectar and are highly attractive to pollinators - particularly butterflies. The papery petals of the flowers are edible and look rather good sprinkled on drinks or cakes, or in salads. They also dry particularly well for winter displays.
Centaurea are also known as Bachelor's Buttons. These familiar, charming, brightly-coloured pompoms on fuzzy grey stems, are well loved by humans and hover flies. Blue Boy is at home in borders, with herbs, or in the kitchen garden, brightening our spirits. Direct seed, making multiple sowings April to June to extend bloom. May be planted in October on the Coast. Traditional vivid blue blossoms, tall growing for masses of cut flowers. Plant height 90cm (3ft).
FL2187 A (1g) approximately 210 seeds
FL2187 B (5g) approximately 1050 seeds
FL2187 C (15g) approximately 3150 seeds
FL2187 D (25g) approximately 5250 seeds
The familiar papery flowers that dry so well in a mix of purple, blue, pink, and white. Try some in a big clump at the edge of the yard for stunning colour!
FL2188 A (1g) approximately 247 seeds
FL2188 B (5g) approximately 1260 seeds
FL2188 C (15g) approximately 3780 seeds
FL2188 D (25g) approximately 6300 seeds
FL2188 E (125g) approximately 31500 seeds