Can I use a fungicide on my Trumpet tree?

Yes, a copper based fungicide can help manage severe outbreaks. Apply it according to the label instructions during a time when the leaves can dry quickly.

Should I cut off all the spotted leaves?

If the spots cover more than half the leaf, it is best to remove it. This helps the plant focus its energy on healthy growth.

Trumpet tree: spots, causes and fixes

Check these first

Inspect the undersides of the leaves for fungal spores.
Check if the soil is consistently soggy.
Ensure the plant has enough space for air to move around it.

Likely causes

Fungal Leaf Spot
Most likely
How to tell: You will see dark, circular, or irregular patches on the foliage, sometimes with a yellow halo. These spots often appear after periods of high humidity or overhead watering.
What to do: Remove and destroy the infected leaves immediately to stop the spread. Improve air circulation around the plant by moving it to a spot with a gentle breeze or using a small fan. Avoid splashing water on the leaves when you water the soil.
Overwatering
Possible
How to tell: The spots may look water soaked and soft, often accompanied by a general yellowing of the lower leaves. The soil will feel constantly soggy to the touch.
What to do: Let the top 2 inches of soil dry out before watering again. Ensure your pot has drainage holes so excess water can escape freely. Adjust your schedule to water every 5 to 7 days instead of every 3 days.

Leaf spots on other plants

Find out what's wrong with your trumpet tree

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

If the spots are spreading rapidly across the entire canopy, it is time to take aggressive action. A few isolated spots on older leaves are usually not a major concern.

Stopping it coming back

Keep the foliage dry by watering only at the base of the plant and ensure good airflow in the room.

Trumpet tree: spots? Check yours with a photo

Every plant is a little different. Take a photo of your trumpet tree 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

Can I use a fungicide on my Trumpet tree?: Yes, a copper based fungicide can help manage severe outbreaks. Apply it according to the label instructions during a time when the leaves can dry quickly.
Should I cut off all the spotted leaves?: If the spots cover more than half the leaf, it is best to remove it. This helps the plant focus its energy on healthy growth.

Guides to these causes

Leaf Spot

Why does my Trumpet tree have spots on its leaves?

Check these first

Not sure what's wrong with your trumpet tree?