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Check these first
- Look closely at the undersides of the leaves for tiny bugs.
- Check if the leaves have been staying wet after watering.
- Inspect the plant for sticky residue on the stems.
Likely causes
Aphids
PossibleHow to tell: You will see tiny insects clustered on the new growth or undersides of leaves. They often leave behind sticky residue or cause yellowing spots.
What to do: Wash the leaves gently with a stream of water to dislodge the pests. For persistent cases, apply a mild insecticidal soap every 5 to 7 days.
Fungal Leaf Spot
PossibleHow to tell: Small brown or black spots appear on the leaves, often with a yellow halo. This happens when leaves stay wet for too long in stagnant air.
What to do: Remove the affected leaves to stop the spread. Improve air circulation around the plant and avoid getting water on the foliage when you water.
Find out what's wrong with your upright hedge bedstraw
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 spots are rapidly spreading across the entire plant, it could be a serious fungal infection. A few isolated spots are usually manageable with pruning.
Stopping it coming back
Keep the foliage dry and ensure there is good airflow around your plant. Inspect new growth regularly for aphids.
Upright hedge bedstraw: spots? Check yours with a photo
Every plant is a little different. Take a photo of your upright hedge bedstraw 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
- Are these spots contagious to other plants?
- Yes, if the spots are fungal, they can spread through water droplets or air. Isolate the affected plant until it is clear.
- Can I use neem oil for the spots?
- Neem oil works well for aphids, but use it carefully. Apply it in the evening to avoid burning the leaves in the sun.
Guides to these causes
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Back to the Upright hedge bedstraw 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.