Ardisia

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 best. Will tolerate lower light but will not bloom or set berries without adequate light. An unobstructed east-facing window or filtered south light works well. Full-spectrum grow lights are a solid alternative.

Moderate to high, around 50-60% relative humidity. Dry winter air indoors is a common problem; a cool-mist humidifier nearby helps significantly.

Standard, well-draining houseplant potting mix. Repot every 3 years in spring, but it performs better when slightly pot-bound, which also encourages blooming.

Sudden berry or flower drop from location changes, underwatering, temperature extremes, or low humidity. Scale, mealybugs, and spider mites are the main pest threats. Root rot can occur if kept too wet.