ROSCOEA ‘HARVINGTON RAW SILK’ Bred by Hugh Nunn of Twelve Nunns Nursery, this early flowering hybrid has pale-pink bracts opening to large, pale-yellow to ivory flowers. Roscoeas were among the most popular plants in the garden last year, where they performed really well; I reckon this was because of the wet summer. I plant mine in a sunny spot with a bit of shade from nearby plants. If you grow them in sun, make sure the soil does not get too dry. I propagate them by division in April and seed sown fresh in autumn. AGM*. Height 30cm. Origin Garden (species China). Conditions Moist but well-drained, humus-rich soil; semi-shade to full sun. Hardiness RHS H5†. Season of interest July to August for flowers.