Anthurium Regale Care — Growing the King of Anthuriums Indoors

Anthurium regale is a rare aroid prized for its massive velvety leaves. Learn the exact humidity, soil, and light requirements to grow this king of anthuriums successfully indoors. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Anthurium regale produces enormous heart-shaped leaves up to 4 feet long with prominent white veining. Native to Peru where it grows as an epiphyte in cloud forests at 1000-2000m elevation. Requires consistently high humidity above 70% — a greenhouse cabinet or humidifier is essential. Growth rate is slow, producing only 3-5 new leaves per year under ideal indoor conditions. Mature plants can reach 6 feet tall with proper support and climbing structure. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: High humidity mimics its native cloud forest environment where moisture is constant. Chunky aroid soil prevents root rot while allowing air circulation around epiphytic roots. Bright indirect light replicates the dappled canopy light of its natural habitat. Warm stable temperatures between 65-80°F prevent cold stress and leaf damage. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Provide bright indirect light — an east-facing window or grow light at 200-400 PPFD works well. Plant in a very chunky mix of orchid bark, perlite, sphagnum moss, and horticultural charcoal. Maintain humidity above 70% using a glass cabinet, tent, or large humidifier running constantly. Water when the top inch of substrate dries — keep moist but never waterlogged. Feed monthly with a balanced liquid fertilizer diluted to half strength during the growing season. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

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