A robust plant for the border with whorls of large, conspicuously veined leaves, and bearing branched spikes densely covered with small flowers of a most unusual blackish-purple colour. Hardy throughout the British Isles. 2-4 ft.
Classification:
Hardy, Perennial, RHS Award
Price:
£2.53 per packet
Guide prices for information only: Euros: € 2.82 US Dollars: $ 3.87