Pocket BotanistCheck these first
- Check the soil moisture to ensure it is not too dry.
- Inspect the undersides of leaves for aphids.
- Look for dark spots that might indicate a fungal infection.
Likely causes
Severe Drought
PossibleHow to tell: The tree drops leaves to conserve moisture during a long dry period. The leaves may curl or brown before falling.
What to do: Provide a deep, slow watering to saturate the root zone. Apply 2 to 3 inches of wood mulch around the base to hold in moisture.
Aphid Infestation
PossibleHow to tell: You see sticky honeydew on the leaves or branches. Tiny insects may be visible on the undersides of leaves.
What to do: Spray the foliage with a strong stream of water to dislodge the aphids. If the infestation is heavy, use an insecticidal soap according to the label instructions.
Find out what's wrong with your american linden
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
Worry if the tree loses a large portion of its leaves in midsummer. It is normal for the tree to lose some leaves as it prepares for winter in the fall.
Stopping it coming back
Maintain consistent moisture and monitor the tree for pests during the spring and summer. Keep the area around the trunk clear of weeds.
American linden: leaf drop? Check yours with a photo
Every plant is a little different. Take a photo of your american linden 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
- Will the tree recover after dropping leaves?
- If the cause is addressed, the tree will likely recover by the next growing season. Ensure it gets enough water to support its recovery.
- Are aphids harmful to the whole tree?
- Aphids are usually a minor nuisance, but a large population can weaken the tree. Managing them early keeps the tree healthy.
Guides to these causes
More problems with American linden
- Why are there sticky drops on my American linden leaves?
- Why does my American linden have dark spots on its leaves?
- Why is my American linden tree drooping?
- Why are my American linden's leaves turning yellow?
- Why are my American linden's leaf tips turning brown?
- Why is my American linden showing signs of root rot?
- Why are my American linden leaves curling?
Back to the American linden 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.