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Coconut Palm · Cocos nucifera

Why are my coconut palm leaves turning yellow?

Yellowing fronds on a coconut palm can be alarming because it often points to nutrient deficiencies or serious disease. Check your soil moisture and fertilizer schedule first to rule out simple hunger.

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

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

Check these first

  1. Inspect the oldest fronds for uniform yellowing.
  2. Check the soil to see if it has been dry for too long.
  3. Look for signs of fruit drop or stunted growth.

Likely causes

  1. Magnesium or Potassium Deficiency

    Most likely

    How to tell: The older, lower fronds turn yellow while the center remains green. You might see orange or bronze spotting on the leaflets.

    What to do: Apply a palm specific fertilizer that contains magnesium and potassium. Follow the package instructions for a slow release formula every 3 months.

  2. Lethal Yellowing

    Possible

    How to tell: The oldest fronds turn yellow rapidly and the palm stops producing new fruit. This is a fatal infection spread by insects.

    What to do: Consult a local arborist immediately for testing. Unfortunately, there is no cure once the tree is infected, and it must be removed to protect others.

Yellow leaves on other plants

Find out what's wrong with your coconut palm

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 starts at the bottom and moves up rapidly, or if the palm stops producing new growth, you should be very concerned.

Stopping it coming back

Feed your palm regularly with a high quality palm fertilizer and keep the soil consistently moist.

Coconut Palm: yellow leaves? Check yours with a photo

Every plant is a little different. Take a photo of your coconut palm 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 save a palm with Lethal Yellowing?
No, there is no known cure for this disease. It is best to remove the tree to prevent the spread to nearby palms.
Is it normal for the bottom fronds to yellow?
Yes, it is normal for the very oldest, lowest fronds to yellow and die back as the tree grows. This is just the natural aging process.

Guides to these causes

More problems with Coconut Palm

Back to the Coconut Palm 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.