Check these first
- Smell the soil for a sour odor.
- Check if the pot has drainage holes.
- Feel if the soil is soggy or waterlogged.
Likely causes
Overwatering
Most likelyHow to tell: The soil feels constantly muddy and the base of the stems may look mushy or dark. You might also notice a sour or swampy smell coming from the pot.
What to do: Stop watering immediately and let the top inch of soil dry out. If the plant is severely wilted, gently remove it from the pot to trim away any black, slimy roots before repotting in fresh, well draining soil.
Poor drainage
Most likelyHow to tell: Water pools on the surface of the soil for a long time after watering. The pot may lack holes, causing water to collect at the bottom.
What to do: Ensure your pot has drainage holes at the bottom. If it does not, carefully transplant the fern into a container that allows excess water to escape freely.
Find out what's wrong with your rattlesnake 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.
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When to worry
If the stems are turning black and mushy at the base, the rot is advanced. It is time to act quickly to save the remaining healthy roots.
Stopping it coming back
Always use a potting mix designed for moisture loving plants and ensure the pot drains well. Only water when the top of the soil feels slightly less than damp.
Rattlesnake fern: root rot? Check yours with a photo
Every plant is a little different. Take a photo of your rattlesnake 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
- Can I save a fern with root rot?
- Yes, if you catch it early. Trim the dead roots, repot in fresh soil, and be very careful with your watering schedule moving forward.
- Does this plant bloom?
- Rattlesnake ferns do not produce flowers. They reproduce through spores found on specialized stalks, which is normal for this species.
More problems with Rattlesnake fern
- Why does my Rattlesnake fern have dark spots on its leaves?
- Why are the tips of my Rattlesnake fern turning brown?
- Why is my Rattlesnake fern drooping?
- Why are my Rattlesnake fern leaves turning yellow?
- Why is my Rattlesnake fern dropping leaves?
- Why are there bugs on my Rattlesnake fern?
- Why is my Rattlesnake fern looking so leggy?
- Why are my Rattlesnake fern leaves curling?
Back to the Rattlesnake fern guide
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.

