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Sun spurge · Euphorbia helioscopia

Why is my Sun spurge dropping leaves?

It is less common for this plant to drop leaves, but it usually happens when the soil stays too wet or the plant is not getting enough light. Check the soil moisture first to see if the roots are sitting in water.

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Check these first

  1. Check the soil moisture with your finger.
  2. Inspect the pot for proper drainage holes.
  3. Evaluate the amount of direct sunlight the plant receives.

Likely causes

  1. Overwatering

    Most likely

    How to tell: The lower leaves turn yellow and fall off while the soil feels soggy to the touch.

    What to do: Stop watering immediately and let the top 2 inches of soil dry out. Ensure your pot has drainage holes so excess water can escape.

  2. Low Light

    Possible

    How to tell: The plant looks stretched out and the leaves drop because it cannot produce enough energy.

    What to do: Move your Sun spurge to a spot that receives full, direct sun for at least 6 to 8 hours a day. If you are growing it indoors, place it directly in a south facing window.

Leaf drop in other plants

Find out what's wrong with your sun spurge

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 the oldest bottom leaves to drop occasionally as the plant grows. Worry if you see multiple leaves falling off at once or if the stem starts to feel soft.

Stopping it coming back

Maintain a consistent watering schedule and ensure your plant gets plenty of direct sun every day.

Sun spurge: leaf drop? Check yours with a photo

Every plant is a little different. Take a photo of your sun spurge 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

Will my plant grow new leaves where they dropped?
Usually, the stem will remain bare where the leaves fell off. The plant will continue to grow new foliage from the top.
Can I save a plant that dropped all its leaves?
If the stem is still firm and green, there is a good chance it will recover with proper light and careful watering. If the stem is mushy, the plant is likely beyond saving.

More problems with Sun spurge

Back to the Sun spurge 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.