Arum Lilies love loose, acidic, well-drained soil. The soil should be nutritious and have plenty of organic matter with proper aeration.
Calla lilies are considered aquatic or semi-aquatic plants, and their favorite home is by the water’s edge. But when grown in soil, it should not remain soggy to prevent root rot.
It prefers moist and humid conditions with protection from full sun, so it’s best to plant it in an area with partial shade.
As house plants, grow them on a south-facing window with bright, indirect light and place them with a humidifier or pebble tray.
Plant Arum Lilies in early spring and prune in summer. If you're growing them outdoors, move them in early autumn.
Use a slow-release fertilizer or well-rotted compost mixed with cow dung or bone meal to ensure nutrition that lasts longer.