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Eucalyptus

Why is my eucalyptus plant growing so leggy?

Eucalyptus plants are sun lovers that stretch out when they are not getting enough light. Check your light levels first to see if your plant is reaching for the sun.

Not sure it's this? Check a photo of your plant for free

leggy growth on a plant
Photo: Rosser1954, CC BY-SA 4.0

Check these first

  1. Assess the number of hours of direct sunlight your plant receives daily.
  2. Observe if the plant is leaning toward a specific light source.
  3. Check if the stems have been pruned in the last year.

Likely causes

  1. Insufficient Light

    Most likely

    How to tell: The stems are long and thin with large gaps between the leaves. The plant leans heavily toward the nearest window.

    What to do: Move your eucalyptus to a spot that gets at least 6 to 8 hours of direct sun every day. If you cannot provide enough natural light, place it under a high output grow light for 12 hours daily.

  2. Lack of Pruning

    Most likely

    How to tell: The plant is tall and sparse but otherwise appears healthy. It has not been trimmed back in a long time.

    What to do: Prune the top stems back by 2 to 4 inches to encourage side branching. Do this in the spring or early summer when the plant is actively growing.

Leggy growth in other plants

Find out what's wrong with your eucalyptus

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

It is not a medical emergency, but a leggy plant will eventually become top heavy and unstable. It is normal for young eucalyptus to grow quickly, but they should remain dense if given enough light.

Stopping it coming back

Keep your eucalyptus in the brightest spot you have and prune it lightly once a year to maintain a compact shape.

Eucalyptus: leggy growth? Check yours with a photo

Every plant is a little different. Take a photo of your eucalyptus 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 fix a leggy eucalyptus by just moving it?
Moving it to better light will stop the new growth from being leggy, but the existing long stems will not shrink. You will need to prune those long stems to help the plant look fuller again.
Does my eucalyptus need fertilizer to stop being leggy?
No, fertilizer will actually make a leggy plant grow faster and even weaker. Focus on increasing the light exposure first.

More problems with Eucalyptus

Back to the Eucalyptus 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.