An anthurium's colourful display includes a modified leaf called a spathe. For lasting growth, pay as much attention to drainage and light as to the flowers.
Anthurium roots need an airy medium
Florist anthuriums are grown for foliage and colored spathes around a central flower spike. Use an appropriate open houseplant or epiphyte mix with drainage. A dense, permanently wet pot is not improved by adding more fertilizer.
Give useful filtered light
Choose a bright position without abruptly introduced harsh sun. A dim room can reduce growth and flowering even where the old leaves remain green. Keep plants away from cold glass and direct heating airflow.
Water according to roots and growth
Wet the root zone when needed and let excess leave. Check an outer container for collected water. Thick roots and leaves still require oxygen; misting foliage does not correct a saturated medium or a dry root ball.
Diagnose marks before treating
Yellowing, brown edges and spots have different possible causes. Inspect the pattern, roots and leaf undersides rather than selecting a chemical from one damaged leaf. Clean suitable foliage gently, remove deteriorating material and feed healthy active growth at an appropriate label rate. Handle the plant as an ornamental.
Related reading
Phalaenopsis at Home: Light, Roots and Watering