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Creeping Jenny · Lysimachia nummularia

Are there bugs on my Creeping Jenny?

It is less common for this plant to suffer from major pest infestations, as it is generally quite hardy. When pests do appear, they are usually aphids or spider mites attracted by dry conditions or poor airflow. Check the undersides of the leaves first to spot any tiny insects or webbing.

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pests on a plant
Photo: Jules Verne Times Two, CC BY-SA 4.0

Check these first

  1. Inspect the undersides of the leaves with a magnifying glass.
  2. Look for sticky residue on the stems.
  3. Check for fine webbing between the foliage.

Likely causes

  1. Aphids

    Most likely

    How to tell: You will see tiny green or black insects clustering on the new growth or the undersides of leaves. They often leave behind a sticky substance called honeydew.

    What to do: Spray the plant thoroughly with a gentle stream of water to knock the aphids off. If they persist, apply insecticidal soap once a week for 3 weeks. Make sure to coat the undersides of the leaves.

  2. Spider Mites

    Possible

    How to tell: Fine, dusty webbing appears between the stems or leaves. The foliage may start to look stippled or pale as the mites suck the sap.

    What to do: Increase the humidity around your plant by misting it or using a pebble tray. Wipe the leaves down with a damp cloth to remove the mites and their webs. Use neem oil if the infestation is heavy.

Pests 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

Worry if you see the plant losing vigor or if the leaves start to yellow and curl. A few stray bugs are manageable, but a full infestation requires immediate treatment.

Stopping it coming back

Keep the plant well watered and provide good air circulation to discourage pests. Regularly wiping down the leaves helps keep them clean and pest free.

Creeping Jenny: pests? 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 dish soap to kill the bugs?
You can use a very mild solution of water and a few drops of unscented dish soap. However, dedicated insecticidal soap is safer and more effective for your plant.
Will these pests spread to my other plants?
Yes, aphids and spider mites can easily travel to nearby plants. Isolate your Creeping Jenny until you are sure the pests are gone.

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.