Check these first
- Inspect the stems and undersides of leaves for clusters of insects.
- Check for sticky residue on the leaves.
- Wash the plant with a gentle water spray.
Likely causes
Aphid Infestation
Most likelyHow to tell: You see small green or black insects clustered on the stems or undersides of leaves.
What to do: Spray the plant with a gentle stream of water to knock them off. Use insecticidal soap if the infestation persists.
Dry Environment
PossibleHow to tell: The plant is in a very dry area, making it more attractive to pests.
What to do: Increase the humidity around the plant. Ensure the soil remains consistently moist to keep the plant healthy and resistant.
Find out what's wrong with your hemlock water dropwort
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 leaves start curling or turning yellow, the infestation is severe and needs immediate treatment.
Stopping it coming back
Keep the plant well watered and mist the foliage occasionally to discourage aphids.
Hemlock water dropwort: pests? Check yours with a photo
Every plant is a little different. Take a photo of your hemlock water dropwort 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 aphids harmful to my plant?
- Yes, they drain the plant of nutrients and can stunt its growth. They also leave behind a sticky substance that can attract mold.
- Should I use chemical pesticides?
- Try natural methods like water sprays or insecticidal soap first. Avoid harsh chemicals as they can damage the plant.
Guides to these causes
More problems with Hemlock water dropwort
Back to the Hemlock water dropwort 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.

