Check these first
- Inspect the leaves for red beetles or dark larvae.
- Look for brown spots that might indicate a fungal infection.
- Check if the plant has been moved to a new location recently.
Likely causes
Lily Beetle
PossibleHow to tell: You will see bright red beetles or their dark, slimy larvae feeding on the leaves. This damage causes the leaves to weaken and eventually fall off.
What to do: Pick the beetles off by hand and drop them into soapy water. For larger infestations, use a neem oil spray on the foliage every 7 to 10 days.
Botrytis Blight
PossibleHow to tell: Small brown or reddish spots appear on the leaves, which eventually grow and cause the leaf to wither and drop. This fungal disease thrives in cool, damp conditions.
What to do: Remove and destroy all affected leaves immediately 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 lily
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 leaf drop is sudden and affects many leaves at once, as this indicates a serious pest or disease issue. It is normal for the lowest, oldest leaves to yellow and drop as the lily prepares to go dormant after flowering.
Stopping it coming back
Keep the foliage dry when watering and inspect your plant weekly for any signs of beetles or fungal spots.
Keep your lily 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
- Will my lily grow new leaves?
- Lilies generally do not regrow leaves on the same stem once they have fallen off. Focus on keeping the remaining foliage healthy to support the bulb.
- Is leaf drop a sign of overwatering?
- It can be, as soggy soil leads to root stress which causes the plant to shed leaves. Always ensure the top inch of soil dries out before watering again.
More problems with Lily
- Why are there brown spots on my lily leaves?
- What are these red bugs on my lily?
- Why is my lily not producing any flowers?
- Why are my lily leaves turning yellow?
- How do I fix root rot in my lily?
- Why is my lily growing tall and leggy?
- Why are my lily's leaf tips turning brown?
- Why is my lily drooping?
- Why are my lily leaves curling?
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.
