Attractive rockery plants for a semi-shady. Work in plenty of mould, peat, orsimilar moisture-retaining material. They bloom over a long period in spring and are increased by division after flowering. Synthyris reniformis cordata (Sweetzeri) has rounded, shining , crinkled at the edges, and dark blue, bell-shaped on short spikes. It reaches 4 in. S. plantaginea is later and rather taller to about 8 in., with -blue .