How to Fix Brown Edges on Calathea — Complete Solution Guide

Why your Calathea has brown leaf edges and how to fix it. Water quality is usually the answer. 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: Cause #1: Tap water minerals (fluoride, chlorine, dissolved salts). Cause #2: Low humidity (below 50%). Cause #3: Underwatering or inconsistent moisture. Solution: Switch to filtered/distilled water + increase humidity. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Brown edges are the #1 Calathea complaint worldwide. 90% of the time it is caused by tap water quality. Calatheas are extremely sensitive to fluoride and chlorine. Once edges brown, they do not recover — but new leaves will be clean. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Step 1: Switch to filtered, distilled, or rainwater immediately. Step 2: Increase humidity to 50%+ — use a humidifier. Step 3: Keep soil consistently moist — don't let it dry out. Step 4: Trim brown edges with clean scissors for aesthetics. Step 5: New growth should come in clean — be patient. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

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