Should I cut off all the spotted leaves?

Yes, removing them helps prevent the fungus from spreading to healthy parts of the plant.

Can I use a fungicide?

Usually, it is not necessary for plantain. Improving airflow and keeping leaves dry is much more effective.

Greater Plantain: spots, causes and fixes

Check these first

Inspect the undersides of the leaves for signs of pests.
Touch the soil to see if it feels waterlogged.
Check if the plant is crowded by other plants.

Likely causes

Fungal leaf spot
Most likely
How to tell: You will see distinct round, brown spots appearing on the leaves, often with a darker border.
What to do: Remove the affected leaves immediately to stop the spread. Improve air circulation around the plant and avoid overhead watering to keep the foliage dry.
Overwatering
Possible
How to tell: The soil stays soggy for long periods and the spots appear soft or mushy.
What to do: Let the top inch of soil dry out completely before watering again. Ensure your pot has drainage holes so excess water can escape.

Leaf spots on other plants

Find out what's wrong with your greater plantain

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.

When to worry

Worry if the spots are spreading rapidly across the entire plant. A few small spots on older leaves are usually not a major concern.

Stopping it coming back

Water at the base of the plant instead of over the leaves to keep them dry.

Greater Plantain: spots? Check yours with a photo

Every plant is a little different. Take a photo of your greater plantain 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.

Get the app · Or check it from a photo now, free

Questions people ask

Should I cut off all the spotted leaves?: Yes, removing them helps prevent the fungus from spreading to healthy parts of the plant.
Can I use a fungicide?: Usually, it is not necessary for plantain. Improving airflow and keeping leaves dry is much more effective.

Guides to these causes

Leaf Spot

Why does my Broadleaf Plantain have brown spots?