A choice, neat, clump forming species with attractive cordate foliage and clusters of pale yellow bells in spring. Reasonable soil in part shade seems to suit it best. 20cm. Slow to increase.
A clump forming species making a low maound of pale green foliage and branched stems of pale yellow bells in spring, and summer if in good soil. Light shade. 45cm.
A lovely deep purple form with matching rich green leaves. Main flowering in spring and early summer, cut back for an autumn flush too. Clumps to 60cm, sun or light shade.