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Chinese trumpet vine · Campsis grandiflora

Why are my Chinese trumpet vine leaves turning yellow?

It is less common for this plant to have yellow leaves, but it usually points to an issue with how you are watering. Check the soil moisture level first to see if it is too wet or too dry.

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. Feel the soil depth to see if it is soggy or bone dry.
  2. Inspect the drainage holes to ensure they are not blocked.
  3. Look for signs of aphids on the undersides of the yellowing leaves.

Likely causes

  1. Overwatering

    Most likely

    How to tell: The leaves turn yellow and may feel soft or mushy. The soil stays wet for more than 10 days at a time.

    What to do: Allow the top 2 inches of soil to dry out 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 happens when the plant lacks essential minerals like iron or magnesium.

    What to do: Apply a balanced liquid fertilizer once during the growing season. If the soil pH is too high, add a bit of organic compost to help the plant absorb nutrients.

Yellow leaves on other plants

Find out what's wrong with your chinese trumpet vine

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

Be concerned if yellowing spreads rapidly across the whole plant. It is normal for the oldest leaves at the base to turn yellow and drop as the plant ages.

Stopping it coming back

Stick to a consistent watering schedule of every 5 to 10 days depending on the heat.

Chinese trumpet vine: yellow leaves? Check yours with a photo

Every plant is a little different. Take a photo of your chinese trumpet vine 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 the yellow leaves?
Yes, you can snip them off with clean shears. This keeps the plant looking tidy and helps you spot new issues quickly.
Does yellowing mean I have pests?
Sometimes aphids can cause yellowing by sucking sap. Check the new growth for small clusters of insects.

More problems with Chinese trumpet vine

Back to the Chinese trumpet vine 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.