Caladiums are tropical plants with heart-shaped leaves ranging in size from 6 to 12 inches. The numerous cultivars offer foliage colors in red, salmon, rose, white, or green with many variegated combinations. Their flower is a spadix surrounded by a yellow-green spathe. Grown mostly for their interesting foliage display, caladiums perform well in garden borders and containers.
Caladiums grow best in the partial shade of open, high-branched trees. Most cultivars are adapted to full shade, but many selections tolerate partial sun or early morning sunlight. Full sun generally reduces the intensity of the foliage color of most cultivars. Mulch with a 2- to 3-inch layer of organic material to conserve moisture and keep the soil cool.