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Check these first
- Feel the soil 2 inches deep to see if it is saturated.
- Inspect the drainage holes to ensure they are not blocked.
- Check the base of the plant for soft or mushy tissue.
Likely causes
Overwatering
Most likelyHow to tell: The leaves turn yellow and mushy, and the base of the plant feels soft or slimy to the touch. You might also notice a sour smell coming from the soil.
What to do: Stop watering immediately and let the top 2 inches of soil dry out completely. If the plant is in a pot, ensure it has drainage holes and empty the saucer after watering. If the damage is severe, repot the plant into fresh, well draining soil and trim away any black or mushy roots.
Poor Drainage
PossibleHow to tell: The soil stays wet for more than a week after watering, and the plant looks wilted despite the dampness. The roots may appear dark and brittle rather than firm and white.
What to do: Mix perlite or coarse sand into your potting mix to improve aeration and drainage. Ensure your container is not sitting in standing water. If planted in the ground, consider adding organic matter to improve soil structure.
Find out what's wrong with your blue plantain lily
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 entire crown of the plant is mushy and smells bad, the plant may be too far gone to save. It is normal for older, outer leaves to yellow slightly as the season ends.
Stopping it coming back
Only water when the top inch of soil is dry and always use a pot with drainage holes.
Blue plantain lily: root rot? Check yours with a photo
Every plant is a little different. Take a photo of your blue plantain lily 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.
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Questions people ask
- Can I save a Hosta with root rot?
- Yes, if you catch it early. Trim away the dead roots, repot in fresh soil, and be very careful not to overwater while it recovers.
- How often should I water my Hosta?
- Water every 3 to 7 days, but always check the soil first. If the top inch is still damp, wait another day or two.
More problems with Blue plantain lily
- Why does my Blue plantain lily have holes in its leaves?
- Why does my Hosta ventricosa have spots on its leaves?
- Why are the tips of my Blue plantain lily turning brown?
- Why are my Blue plantain lily leaves turning yellow?
- Why is my Hosta ventricosa drooping?
- Why is my Hosta ventricosa not flowering?
- Why is my Hosta ventricosa growing so tall and thin?
Back to the Blue plantain lily 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.