Check these first
- Move the plant to a brighter location.
- Check that the pot has proper drainage holes.
- Feel the soil to see if it is waterlogged.
Likely causes
Low Light
Most likelyHow to tell: The plant looks leggy and the lower leaves turn yellow before falling off.
What to do: Move your basil to a spot that receives at least 6 to 8 hours of direct sunlight daily. If you are growing indoors, use a grow light to supplement.
Overwatering
PossibleHow to tell: The soil stays wet for a long time and the stems near the base look mushy or dark.
What to do: Ensure your pot has drainage holes so excess water can escape. Only water when the top inch of soil is dry to the touch.
Find out what's wrong with your basil
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
When to worry
Worry if the plant is losing leaves from the top down or if the stems are turning black. It is normal for the very oldest, lowest leaves to drop occasionally as the plant grows.
Stopping it coming back
Provide plenty of direct sun and allow the soil to dry slightly between waterings.
Keep your basil 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
- Can cold drafts cause leaf drop?
- Yes, basil is very sensitive to cold. Keep it away from air conditioning vents or drafty windows.
- Will the leaves grow back?
- The plant will grow new leaves from the nodes if the stems are still healthy. Keep providing good light and care.
More problems with Basil
- Why are my basil leaves turning yellow?
- What are these bugs on my basil?
- Why is my basil growing so tall and thin?
- Why is my basil plant drooping?
- What are these spots on my basil leaves?
- Why is my basil plant dying at the roots?
- Why are my basil plant's leaf tips turning brown?
- Why are my basil leaves curling up?
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.
