Hardy tuberous-rooted perennials, suitable for border cultivation.
Plant from August to November in sandy peat. They like a shady, moist, and well-drained border. Top dress in March with decayed leaves. After planting, the plants should be left undisturbed until they show signs of deterioration.
Increase by division of roots at planting time. Also seeds may be sown in the cold frame.
Some of the best varieties for the amateurs garden are: T. grandiflorum, pure white, 1 ft.
T. undulatum, white with roay-purple markings. Height 1 ft.