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Xanadu Philodendron · Thaumatophyllum xanadu

Why does my Xanadu Philodendron have spots on its leaves?

It is less common for this plant to develop spots, which usually stem from fungal issues caused by high humidity and poor airflow. Check the undersides of the leaves first to rule out pests.

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spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Look closely at the underside of the leaves for webbing.
  2. Check if the leaves have been staying wet after watering.
  3. Inspect the spots to see if they are fuzzy or dry.

Likely causes

  1. Fungal leaf spot

    Most likely

    How to tell: Small brown or black spots appear on the leaves, sometimes with a yellow halo. These spots may grow larger if the leaves stay wet for too long.

    What to do: Remove the affected leaves with clean scissors to stop the spread. Improve air circulation around the plant and avoid misting the foliage.

  2. Spider mites

    Possible

    How to tell: Tiny yellow or white stippling dots appear across the leaf surface. You might see fine webbing between the stems or under the leaves.

    What to do: Wipe the leaves down with a damp cloth to remove the mites. Apply neem oil or insecticidal soap once a week for 3 weeks to clear the infestation.

Leaf spots on other plants

Find out what's wrong with your xanadu philodendron

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

Small, isolated spots are usually manageable. Worry if the spots spread rapidly or if the entire leaf begins to wither.

Stopping it coming back

Keep the foliage dry when watering and ensure your plant has enough space for air to move around it. Check your plant weekly for any signs of pests.

Xanadu Philodendron: spots? Check yours with a photo

Every plant is a little different. Take a photo of your xanadu philodendron 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.

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Questions people ask

Should I cut off all the spotted leaves?
If the spots cover most of the leaf, it is best to remove it. If there are only a few small spots, you can leave them as long as they do not grow.
Can I use leaf shine to hide the spots?
No, leaf shine can clog the pores of the plant and make fungal issues worse. Focus on cleaning the leaves with water instead.

Guides to these causes

More problems with Xanadu Philodendron

Back to the Xanadu Philodendron guide

This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.