Calla lilies should perform well if they’re planted in a shady bed (morning sun is okay, but afternoon shade is a must), in rich, moist soil. Callas thrive on heavy watering, so soak the soil every few days to keep it moist. Don’t cut the foliage back, but let it yellow on its own.
Callas go into a dormant period after blooming, so if you water less frequently beginning late summer, the foliage will die back and the roots can rest. New shoots will develop from the crowns of the plants when they’ve finished resting.
Feed your calla lilies with a slow-release plant food for best results.