Can I use a fungicide?

You can, but it is better to fix the air circulation and watering habits first. Most fungal issues on this plant resolve once the environment is corrected.

Are these spots caused by bugs?

Rarely, but check the undersides of the leaves for tiny insects just in case. Usually, spots on this plant are environmental or fungal.

Dutchman's pipe: spots, causes and fixes

Check these first

Examine the spots for fuzzy growth or spores.
Check if the spots are only on the sunniest side of the plant.
Ensure the leaves are not staying wet for long periods.

Likely causes

Fungal leaf spot
Most likely
How to tell: Small brown or black spots appear on the leaves, often with a yellow halo. These spots may grow larger or merge if the humidity remains high.
What to do: Remove and dispose of the affected leaves to stop the spread. Improve air circulation around the vine by thinning out crowded branches.
Sunburn
Possible
How to tell: Bleached or scorched patches appear on the leaves that receive the most direct sun. This happens most often when a plant is moved from shade to full sun too quickly.
What to do: Provide partial shade during the hottest part of the afternoon. If the plant is in a pot, move it to a location with bright indirect light.

Find out what's wrong with your dutchman's pipe

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

Small cosmetic spots are usually not a threat to the plant's life. Worry if the spots cover more than half of the foliage or cause widespread wilting.

Stopping it coming back

Water at the base of the plant rather than overhead to keep the leaves dry. Ensure the vine has plenty of space for air to move through the foliage.

Keep your dutchman's pipe 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.

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Questions people ask

Can I use a fungicide?: You can, but it is better to fix the air circulation and watering habits first. Most fungal issues on this plant resolve once the environment is corrected.
Are these spots caused by bugs?: Rarely, but check the undersides of the leaves for tiny insects just in case. Usually, spots on this plant are environmental or fungal.

What are these spots on my Dutchman's pipe leaves?