P. Stately perennials with handsome ornamental foliage for deep, well-drained soils. (In architecture acanthus is the sculptured leaf which characterises the pillars of Corinthian architecture.) They are slow growers and do not usually succeed on heavy land unless this is lightened by working in plenty of compost, peat etc. Acanthus mollis is the best known species. On favourable soils it reaches 4 ft. The large, heart-shaped leaves may be as much as 1 ft. wide, the tubular flowers being white or rose. A. m. latijolius is a more robust form with extra large leaves. Propagation is by division in March.

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