Has small, ovate, mid to greyish green leaves with scalloped edges. May have p...Read Moreurple or green stems. Bears two lipped, blue or blue-violet flowers borne all up the stems.
Flowers mainly from June to August
Loves a well drained, poorish soil in sun but will tolerate some light shade.
Not particularly hardy and dislikes winter wet so some winter protection may be required in cold or wet winter regions.
An upright, herbaceous perennial from Asia.
Has small, ovate, mid to greyish green leaves with scalloped edges. May have p...Read More