Pocket Botanist
Check these first
- Smell the soil for a sour or rotten odor.
- Check if the pot has drainage holes that are not blocked.
- Gently lift the plant to see if the roots are firm and white or mushy and brown.
Likely causes
Overwatering
Most likelyHow to tell: The leaves turn yellow and wilt even though the soil is wet. The roots will look mushy, dark, and smell unpleasant.
What to do: Stop watering immediately and let the soil dry out significantly. If the plant is in a pot, repot it into fresh, well-draining soil and trim away any black, decaying roots.
Poor drainage
PossibleHow to tell: Water pools on the surface of the soil for a long time after watering. The plant shows signs of decline despite regular care.
What to do: Amend heavy garden soil with compost or perlite to improve drainage. If in a container, ensure there are adequate drainage holes at the bottom.
Find out what's wrong with your comfrey
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
This is a serious condition that can kill the plant if not addressed immediately. If the majority of the root system is mushy, the plant may not be salvageable.
Stopping it coming back
Always ensure the soil is well-draining and never let the plant sit in standing water. Only water when the top inch of soil feels slightly dry.
Keep your comfrey healthy from here
Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.
Questions people ask
- Can I save a plant with root rot?
- Yes, if you catch it early. Trim the dead roots, use fresh soil, and be very careful with your watering habits moving forward.
- Does comfrey like wet soil?
- Comfrey likes moist soil, but it must be well-draining. It does not like to have 'wet feet' where the roots are constantly submerged in water.
More problems with Comfrey
This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.