sunburn on Boston Fern
Quick answer
If your Boston Fern has sunburn, the most likely cause is: Boston ferns cannot tolerate direct sunlight, which causes sunburn characterized by bleached, crispy, or brown patches on fronds. While they need bright indirect light, direct sun�especially intense afternoon sun�damages the delicate foliage. South-facing windows and unfiltered sunlight are common culprits.
Start here:
- 1. Move fern to a location with bright indirect light�east or north-facing windows are ideal
- 2. Filter strong sunlight with sheer curtains if near a south or west window
Why Boston Fern gets sunburn
Nephrolepis exaltata
Boston ferns cannot tolerate direct sunlight, which causes sunburn characterized by bleached, crispy, or brown patches on fronds. While they need bright indirect light, direct sun�especially intense afternoon sun�damages the delicate foliage. South-facing windows and unfiltered sunlight are common culprits.
How to reverse sunburn on Boston Fern
- 1
Move fern to a location with bright indirect light�east or north-facing windows are ideal
- 2
Filter strong sunlight with sheer curtains if near a south or west window
- 3
Trim damaged, sunburned fronds at the base to improve appearance
- 4
Acclimate gradually if moving from low to higher light conditions
- 5
Monitor for new growth to confirm the plant has adjusted
Keep sunburn off this Boston Fern
Position Boston ferns in bright indirect light, never direct sun. Use sheer curtains on south/west windows. Avoid placing directly against hot glass. Maintain consistent light levels without sudden changes.