Tuberous-rooted, tender perennial plants used for conservatory decoration, and also for subtropical and bold effects in the lawn (Plate IV). The plants commonly known under this name are really colocasias.

The roots should be dormant in the winter, being kept in a warm cellar or under a greenhouse bench, where they are not liable to frost or dampness. The roots are usually covered with earth, but they are kept dry. Early in spring the roots are put into boxes or pots and are started into growth, so that by the time settled weather comes they will be I or 2 feet high and ready to set directly into soil.

When set out of doors, they should be protected from strong winds, and from the full glare of direct sunlight. The soil should be rich and deep, and the plants should have an abundance of water. They do well about ponds (see Plate X).

Caladiums are most excellent plants for striking effects, especially against a house, high shrubbery, or other background. If they are planted by themselves, they should be in clumps rather than scattered as single specimens, as the effect is better. See that they get a good start before they are planted in the open ground. As soon as killed down by frost, dig them, dry the roots of superfluous moisture, and store till wanted in late winter or spring.