Last week's unexpected 'magical moment' was in a local garden centre. Lurking by the exit in a turquoise, ceramic pot, I spied a delightful, black buddlea; it was love at first sight! With a delicate arching form and blackcurrant flower spears, the 'Black Knight' will provide a striking silhouette and backdrop for the blue-red roses 'Celebration' and 'The Times'. Being a source of precious nectar for the butterflies and bees adds to its attraction, the multiple flower heads fill the early morning air with a soft, scent of honey.