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Siebold's elderberry · Sambucus sieboldiana

Why is my Siebold's elderberry looking so leggy?

It is less common for this plant to get leggy, as it naturally grows into a sturdy shrub. This usually happens when the plant is not getting enough light to support its growth, so check your light levels first.

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

Check these first

  1. Observe the current light levels in your plant's location.
  2. Check the distance between the leaf nodes on the stems.
  3. Review your recent fertilizing schedule.

Likely causes

  1. Insufficient Light

    Most likely

    How to tell: The stems are stretching out with large gaps between the leaves as the plant reaches for a light source. You might notice the leaves are smaller than usual or paler in color.

    What to do: Move your elderberry to a spot that receives at least 6 hours of bright, direct or filtered sunlight. If you are growing it indoors, place it directly in front of a south or west facing window. You can prune back the long, thin stems in early spring to encourage a bushier shape.

  2. Excessive Nitrogen Fertilizer

    Possible

    How to tell: The plant is growing very quickly but the stems are weak and cannot support the weight of the leaves. This often results in a floppy, stretched appearance rather than a compact shrub.

    What to do: Stop using high nitrogen fertilizers immediately. Switch to a balanced, slow release fertilizer once in the early spring. Avoid fertilizing again until the following year to let the plant harden off.

Leggy growth in other plants

Find out what's wrong with your siebold's elderberry

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 only a concern if the stems are so weak they are snapping or the plant is falling over. Some stretching is normal during the very early spring growth spurt.

Stopping it coming back

Keep your elderberry in a bright, sunny location and avoid overfeeding to ensure the plant stays compact and strong.

Siebold's elderberry: leggy growth? Check yours with a photo

Every plant is a little different. Take a photo of your siebold's elderberry 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 prune my leggy elderberry at any time?
It is best to prune in late winter or very early spring before new growth begins. This allows the plant to put its energy into new, stronger stems.
Will my plant fill back out if I move it to better light?
The existing long stems will not shrink, but moving it to better light will encourage new, denser growth. You can prune the leggy parts once the plant has established itself in the new spot.

More problems with Siebold's elderberry

Back to the Siebold's elderberry 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.