Zantedeschia elliottiana (W.Watson) Engl.
Golden Calla Lily, Golden Arum Lily, Golden Calla, Yellow Calla Lily, Elliott's Calla
Calla elliottiana, Richardia aurata, Richardia elliottiana, Richardia rossii
Bloom Time: Summer
Zantedeschia elliottiana is a stemless, herbaceous perennial whose flowers and leaves rise up to 3 feet (90 cm) tall from underground, tuberous rhizomes. Flowers bloom throughout summer. Each flower structure up to 6 inches (15 cm) tall, features a yellow, finger-like spadix surrounded by a showy, yellow spathe, born atop a leafless stalk. The very tiny and ornamentally insignificant true flowers of this plant are located on the spadix (males on top and females below). Flowers are infrequently followed by a spike of yellow berries. Long-stalked, arrowhead-shaped, dark green leaves up to 11 inches (27.5 cm) long, are heavily spotted with white.
USDA hardiness zone 9a to 10b: from 20 °F (−6.7 °C) to 40 °F (+4.4 °C).
How to Grow and Care
It is easy to grow Calla Lilies. These plants do not generally require too much attention. Proper planting and location are about the only important things to consider when growing Calla Lilies. Care of them requires that they be planted in loose, well-drained soil. They prefer to be located in full sun or partial shade in warmer climates. Plants are typically planted in the spring. However, wait until the threat of frost has passed and the soil has warmed sufficiently before planting.
They should be planted rather deep, about 4 inches (10 cm) for greater results, and spaced approximately a foot apart. Once planted, the area should be watered well. Calla Lilies enjoy being kept moist and will also benefit from a monthly dose of fertilizer throughout the growing season.
As with planting, there's not too much required for the care of Calla Lilies other than keeping them watered and fertilized. An adequate layer of mulch around the plants will help keep the area moist and free of weeds. They require a dormant period once flowering has ceased. During this time, you should refrain from watering as much to allow the plant to die back… – See more at: How to Grow and Care for Calla Lilies
It is reportedly native to South Africa, but may be of garden origin.
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