This delphinium group produces full, dense forms with light and delicate clusters of flowers. Selections include 'Belladonna' (light blue), 'Bellamosum' (dark blue), 'Casa Blanca' (white), and ...

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For instance, a canary yellow rose would be considered lighter than a purple Penstemon, which in turn is lighter than a dark blue Delphinium. Intensity refers to the strength or sharpness of a color.

The Delphinium ‘Mighty Atom’ is widely known ... these blooms are prominent in all of the King’s gardens. Purple and dark blue are his preferred colours and this variety has cascades of ...