Pocket BotanistCheck these first
- Examine the stems for small, hard bumps that look like scale.
- Check the soil to see if it has dried out completely.
- Look for any signs of pests on the fallen leaves.
Likely causes
Scale insects
Most likelyHow to tell: You will see small, raised bumps on the stems or undersides of leaves. These sap suckers drain the tree and cause leaves to yellow and drop.
What to do: Scrub the scale off with a soft brush or apply horticultural oil during the dormant season. Repeat the treatment as directed on the product label.
Severe drought
PossibleHow to tell: The leaves turn brown or yellow and fall off in large numbers during a dry spell. The soil will be bone dry to the touch.
What to do: Water the tree deeply to ensure moisture reaches the entire root system. Apply a 2 to 3 inch layer of mulch to help hold that moisture in.
Find out what's wrong with your american holly
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 the tree is losing a large portion of its leaves, it is a serious sign of distress. It is normal for a few older, inner leaves to drop occasionally throughout the year.
Stopping it coming back
Monitor the tree for pests regularly and keep the soil moisture consistent.
Keep your american holly healthy from here
Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.
Questions people ask
- Is it normal for my holly to drop leaves in winter?
- American hollies are evergreen, so they should keep their leaves year round. A few leaves dropping is fine, but heavy loss is not.
- Can I use soap to kill the scale?
- Yes, insecticidal soap is effective against scale. Make sure to spray the undersides of the leaves and the stems thoroughly.
More problems with American holly
- Why are my American holly leaves turning yellow?
- What are those tunnels in my American holly leaves?
- Why does my American holly have spots on its leaves?
- Why are the tips of my American holly leaves turning brown?
- Why is my American holly drooping?
- Why is my American holly not flowering?
- Why is my American holly showing signs of root rot?
- Why is my American holly looking leggy?
Back to the American holly guide
This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.