Check these first
- Examine the spots to see if they are fuzzy or dry.
- Check if you have been splashing water on the fronds.
- Look for tiny insects on the underside of the leaves.
Likely causes
Fungal infection
Most likelyHow to tell: Small brown or black spots appear on the fronds, often surrounded by a yellow halo. This happens when the foliage stays wet for too long.
What to do: Remove the affected fronds to stop the spread. Ensure the plant has good airflow and avoid getting water on the leaves when you water the soil.
Leaf scorch
PossibleHow to tell: Brown, crispy spots appear on the fronds that get the most light. This is a direct reaction to too much sun or drying winds.
What to do: Move the fern to a shadier spot with no direct sunlight. Keep the plant away from windows that get hot afternoon sun.
Find out what's wrong with your lady fern
The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
When to worry
If the spots are spreading rapidly across all fronds, it is a serious fungal issue. Small, isolated brown tips are usually just a sign of low humidity.
Stopping it coming back
Water at the base of the plant rather than over the top of the fronds. Provide gentle air circulation in the room.
Lady fern: spots? Check yours with a photo
Every plant is a little different. Take a photo of your lady fern and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
Get the app · Or check it from a photo now, free
Questions people ask
- Are these spots a disease?
- They are often fungal, caused by moisture trapped on the leaves. Keeping the foliage dry is the best way to prevent them.
- Do Lady ferns flower?
- Lady ferns are spore bearing plants and do not produce flowers. They reproduce through spores found on the undersides of the fronds.
Guides to these causes
More problems with Lady fern
- Why are my Lady fern's tips turning brown?
- Why are my Lady fern's leaves turning yellow?
- Why is my Lady fern drooping?
- Why is my Lady fern showing signs of root rot?
- Why is my Lady fern dropping its fronds?
- Why are there bugs on my Lady fern?
- Why is my Lady fern looking thin and leggy?
- Why are my Lady fern's fronds curling?
This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.

