Dieffenbachia amoena

bright indirect light (3-6 feet from a south or west window, or right next to an east window. Under a grow light, 6-10 inches away works well) is ideal. Tolerates lower light but will grow more slowly and lose some leaf color. Avoid direct sun (right in the window where sun actually hits the leaves. A strong grow light 4-6 inches away can substitute), which scorches leaves.

Prefers 50-60% relative humidity. Pebble trays or a humidifier help in dry indoor environments. misting (note: misting does not actually raise humidity meaningfully. A pebble tray or humidifier is more effective) can assist but is not a substitute for ambient humidity.

Rich, well-draining potting mix with good organic content. Standard all-purpose potting soil works well. Good drainage is essential - soggy soil causes root rot quickly.

Root rot from overwatering is the primary killer. Spider mites, scale, whiteflies, and fungus gnats are common pest threats. Leaf tip browning usually signals fluoride in tap water or salt buildup from over-fertilizing.