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Creeping Jenny · Lysimachia nummularia

Why are there spots on my Creeping Jenny leaves?

Spots on your Creeping Jenny are often caused by fungal issues that thrive in damp, stagnant air. Check your plant for poor airflow or crowded conditions.

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spots on a plant
Photo: Scot Nelson, CC0

Check these first

  1. Inspect the undersides of the leaves for fuzzy growth.
  2. Check if the plant is crowded by other pots.
  3. Look at your watering technique to see if leaves are getting wet.

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.

    What to do: Remove the affected leaves immediately to stop the spread. Improve air circulation by spacing out your plants or moving them to a breezier area.

  2. Water Splashing

    Possible

    How to tell: Spots appear after you water, often on lower leaves.

    What to do: Water at the base of the plant rather than over the top of the foliage. This keeps the leaves dry and prevents fungal growth.

Leaf spots on other plants

Find out what's wrong with your creeping jenny

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

If the spots are spreading rapidly across the entire plant, it is time to take action. A few isolated spots are common in humid weather.

Stopping it coming back

Water only the soil and ensure your plant has plenty of space for air to move around it.

Creeping Jenny: spots? Check yours with a photo

Every plant is a little different. Take a photo of your creeping jenny 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

Can I use a fungicide?
You usually do not need to. Improving airflow and keeping the leaves dry is almost always enough to stop the problem.
Are these spots contagious to other plants?
Yes, fungal spores can spread through the air. Move the affected plant away from your other greenery until it is healthy again.

Guides to these causes

More problems with Creeping Jenny

Back to the Creeping Jenny 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.