A herbaceous perennial which forms a mat of bright, glossy foliage and produces upright flower spikes of small, powder blue flowers. Flowering from June-July. Height 45cm. Sun to part shade and moist free draining soil.
Hardy herbaceous perennial with pinnate leaves and branching stems bearing flattened umbels of yellow flowers. June-July. 90cm. Sun or partial shade in moist well drained soil. May self sow.
Hardy herbaceous perennial with matt green heart shaped leaves and panicles of pink-mauve flowers. May-June. 1.5m. Sun or partial shade, moist free draining soil. Might self sow.