Check these first
- Inspect the undersides of all leaves with a flashlight.
- Look for sticky residue on the leaves or the surface below the pot.
- Check the flower buds for tiny clusters of insects.
Likely causes
Aphids
Most likelyHow to tell: You will see tiny green or black insects clustered on new growth or flower buds. They often leave behind a sticky substance called honeydew.
What to do: Spray the plant with a gentle stream of water to knock them off. Follow up by wiping the leaves with a mild solution of water and a few drops of dish soap every 3 days for 2 weeks.
Whiteflies
Most likelyHow to tell: Small white insects will fly up in a cloud if you brush against the plant. They hide on the undersides of leaves and suck the sap.
What to do: Use yellow sticky traps placed near the plant to catch adults. Treat the foliage with neem oil once a week until you no longer see any activity.
Find out what's wrong with your regal geranium
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
You should worry if the leaves start yellowing or curling, as this means the infestation is draining the plant. A few stray bugs are manageable, but a full colony requires immediate action.
Stopping it coming back
Keep your plant in a spot with good air circulation and avoid overcrowding it with other plants. Check new additions to your home for pests before placing them near your geranium.
Regal Geranium: pests? Check yours with a photo
Every plant is a little different. Take a photo of your regal geranium 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 use household soap to kill the bugs?
- Yes, but use a mild, fragrance-free dish soap. Mix one teaspoon per quart of water and spray it on the leaves, making sure to hit the undersides.
- Will these bugs spread to my other plants?
- Yes, aphids and whiteflies move quickly between plants. Isolate your geranium immediately until the infestation is completely gone.
Guides to these causes
More problems with Regal Geranium
- Why is my Regal Geranium not flowering?
- Why are my Regal Geranium's leaves turning yellow?
- Why is my Regal Geranium looking so leggy?
- Why is my Regal Geranium wilting and looking sad?
- Why are the tips of my Regal Geranium leaves turning brown?
- Why is my Regal Geranium drooping?
- Why is my Regal Geranium losing its leaves?
- Why are there spots on my Regal Geranium leaves?
Back to the Regal Geranium 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.

