Check these first
- Smell the soil for a sour or rotten odor.
- Check if the pot has drainage holes.
- Examine the roots for mushy or brown sections.
Likely causes
Overwatering
Most likelyHow to tell: The leaves turn yellow or wilt despite the soil being wet. The base of the stem may look soft or discolored.
What to do: Stop watering immediately and let the top inch of soil dry out. If the soil is muddy, repot the plant into fresh, well draining soil.
Poor Drainage
PossibleHow to tell: Water sits on the surface of the soil for a long time after watering. The pot feels heavy and does not dry out within a week.
What to do: Ensure your pot has holes at the bottom. Use a potting mix that includes perlite to help water move through the soil.
Find out what's wrong with your japanese hop
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 stem is mushy at the base, the plant is likely too far gone. It is normal for the soil to be damp, but it should never be swampy.
Stopping it coming back
Always empty the saucer under the pot after watering. Only water when the top inch of soil is slightly dry.
Japanese hop: root rot? Check yours with a photo
Every plant is a little different. Take a photo of your japanese hop 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 plant with root rot?
- You can try by trimming away the black, mushy roots and repotting in fresh soil. If the main stem is soft, it is usually too late.
- How often should I water to avoid rot?
- Check the soil every 3 to 7 days. If it is still damp, wait another day or two before watering again.
More problems with Japanese hop
- Why are there bugs on my Japanese hop?
- What are these white spots on my Japanese hop?
- Why is my Japanese hop drooping?
- Why is my Japanese hop growing so leggy?
- Why are my Japanese hop leaves turning yellow?
- Why are my Japanese hop's leaf tips turning brown?
- Why is my Japanese hop losing its leaves?
- Why are my Japanese hop leaves curling?
Back to the Japanese hop 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.

