Boston Fern Brown Leaves: Humidity, Light, or Watering?

Three Main Causes

1. Low humidity: New A/C, more A/C use, or seasonal dryness.
2. Reduced light: New drapes, tinted windows, seasonal angle change.
3. Watering change: Different pitcher, frequency, or method.

Other Factors

• Repotting into larger pot (soil stays wet).
• Temperature extremes.
• Simply a temperamental plant.

Best Fix

Move outdoors in summer (shaded porch/tree). Indoors: high humidity, consistent moisture, bright indirect light.