The plant is toxic in its raw state and the edible corms have to be steeped and boiled to remove the calcium oxalate, and the needle-shaped raphides (crystals) in the plant cells. The leaves are, for this reason, a skin and eye irritant. Plants should be lifted and protected over winter in colder climates, as they are only hardy to 7C. The colour of the leaves is best in bright sunlight.
Division in spring.
Pests, diseases or disorders
Soft rot, bacterial blight, corm and root rot, and dasheen mosaic virus are common. Aphids, whiteflies, and spider mites occur.