Physostegia.

Ornamental hardy herbaceous plants, ranging in colour from white to purple. They like a rich soil, and can be raised from seed sown in March. They also bear division. July and August are their flowering months. Height, from 1 ft. to 5 ft.

Related posts:

1. Lamium.
2. Crambe Cordifolia (Tournefort, or Sea Cabbage).
3. Streptocarpus (Cape Primrose).
4. Auricula.
5. Polygonatum.