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Wax Begonia · Begonia semperflorens

Why is my wax begonia not blooming?

It is less common for a wax begonia to stop blooming if it is getting enough light, as this plant is prized for its constant flowers. Check your light levels first, as these plants need bright, indirect light to produce buds.

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Check these first

  1. Move the plant to a brighter location.
  2. Check if the plant is getting at least 4 hours of bright light.
  3. Feed the plant with a balanced fertilizer.

Likely causes

  1. Insufficient Light

    Most likely

    How to tell: The plant looks leggy and the stems are stretching toward the nearest window.

    What to do: Move your begonia to a brighter spot where it gets plenty of indirect light. If you are growing it indoors, a south or east facing window is usually best.

  2. Lack of Fertilizer

    Possible

    How to tell: The plant looks healthy but refuses to set any new flower buds.

    What to do: Apply a balanced liquid fertilizer diluted to half strength every 4 to 6 weeks during the growing season. Do not fertilize during the winter months.

Other plants that won't flower

Find out what's wrong with your wax begonia

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 normal for blooming to slow down during the dark winter months. Worry if the plant refuses to bloom during the peak spring and summer season.

Stopping it coming back

Provide consistent bright light and regular feeding during the active growing months.

Wax Begonia: not flowering? Check yours with a photo

Every plant is a little different. Take a photo of your wax begonia 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

Does my begonia need full sun to bloom?
They prefer bright, indirect light. Too much direct, harsh sun can actually scorch the leaves.
Should I deadhead the old flowers?
Yes, pinching off faded flowers encourages the plant to put energy into producing new blooms.

More problems with Wax Begonia

Back to the Wax Begonia 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.