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NGS garden
Centaurea montana Grandiflora
Deep violet-blue cornflowers with purple centres. Deadhead for second flush of flowers.
Flowering period:
June to August.
Growing conditions:
Sun or part shade.
Typical mature height:
18 inches ( 46 cms )
Hardiness:
Very hardy. Should withstand severe winters and exposed sites.
This is an insect-friendly plant which gives bees and other insects easy access to nectar and pollen.