Troubleshooting
Northern Lady Fern problems — and how to fix them
Northern Lady Fern (Athyrium angustum) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Frond browning and scorch
Brown, papery frond tips and margins are caused by dry soil, direct afternoon sun, or low humidity; move to a shadier, moister position and mulch the root zone to retain moisture.
Slug and snail damage
Slugs and snails rasp large, irregular holes in tender new spring fronds — the most common pest issue; use iron phosphate baits around emerging fronds in early spring, or apply crushed eggshell or copper barriers around the crown.
Prevent northern lady fern problems before they start
Most northern lady fern issues are care-mismatch, not bad luck. Dial in the basics:
Northern Lady Fern problems — FAQ
Why is my northern lady fern frond browning and scorch?
Brown, papery frond tips and margins are caused by dry soil, direct afternoon sun, or low humidity; move to a shadier, moister position and mulch the root zone to retain moisture.
Why is my northern lady fern slug and snail damage?
Slugs and snails rasp large, irregular holes in tender new spring fronds — the most common pest issue; use iron phosphate baits around emerging fronds in early spring, or apply crushed eggshell or copper barriers around the crown.