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Turk's cap · Malvaviscus arboreus

Why are my Turk's cap leaves turning yellow?

It is less common for Turk's cap to have yellow leaves, and this usually happens due to overwatering or poor drainage. Check the soil moisture first to see if it feels soggy.

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yellow leaves on a plant
Photo: Trio3D, CC BY-SA 4.0

Check these first

  1. Touch the top inch of soil to check for dampness.
  2. Lift the pot to see if water is sitting in the saucer.
  3. Look at the undersides of leaves for tiny whiteflies.

Likely causes

  1. Overwatering

    Most likely

    How to tell: The leaves turn yellow and may feel soft or limp. The soil remains wet for a long time after watering.

    What to do: Allow the top inch of soil to dry out completely before watering again. Ensure your pot has drainage holes so excess water can escape.

  2. Nutrient deficiency

    Possible

    How to tell: Older leaves turn yellow while the veins remain green. This often happens if the plant has been in the same soil for years.

    What to do: Apply a balanced liquid fertilizer diluted to half strength once a month during the growing season. If the plant is in a pot, consider repotting it with fresh, nutrient rich soil.

Yellow leaves on other plants

Find out what's wrong with your turk's cap

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

If the yellowing is widespread or affects new growth, take action immediately. A single yellow leaf at the bottom of the plant is often just an old leaf dying off.

Stopping it coming back

Stick to a consistent watering schedule and ensure the soil drains well after every watering.

Turk's cap: yellow leaves? Check yours with a photo

Every plant is a little different. Take a photo of your turk's cap 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

Should I remove yellow leaves?
Yes, you can snip them off with clean scissors. They will not turn green again and removing them helps the plant focus energy on healthy growth.
Can pests cause yellow leaves?
Yes, whiteflies suck sap from the leaves and can cause yellowing or stippling. Check the undersides of the leaves for small white insects.

More problems with Turk's cap

Back to the Turk's cap 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.