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Sneezewort · Achillea ptarmica

Why are my Sneezewort's leaves turning yellow?

This is less common for this plant, but usually happens due to poor drainage or overwatering. Check the soil moisture level first to see if it feels soggy.

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. Touch the soil to see if it is waterlogged.
  2. Check the drainage holes for blockages.
  3. Look for pests like aphids on the undersides of the leaves.

Likely causes

  1. Overwatering

    Most likely

    How to tell: The lower leaves turn yellow and feel soft or mushy to the touch. The soil will remain wet for several days after watering.

    What to do: Allow the top inch 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: This is less common for this plant, but usually happens if the soil is severely depleted of minerals. The leaves turn a pale yellow while the veins stay green.

    What to do: Apply a balanced liquid fertilizer diluted to half strength. Repeat this once every 4 weeks during the active growing season.

Yellow leaves on other plants

Find out what's wrong with your sneezewort

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

Worry if the yellowing spreads rapidly across the whole plant. It is normal for a few old leaves at the base to yellow and drop as the plant grows.

Stopping it coming back

Maintain a consistent watering schedule of every 3 to 7 days and never let the plant sit in standing water.

Sneezewort: yellow leaves? Check yours with a photo

Every plant is a little different. Take a photo of your sneezewort 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 yellow leaves turn green again?
No, once a leaf has turned yellow, it will not turn green again. It is best to snip it off so the plant can focus energy on new growth.
Is yellowing a sign of powdery mildew?
Not usually, as powdery mildew appears as a white fuzzy coating. However, severe mildew can eventually cause leaves to yellow and die.

More problems with Sneezewort

Back to the Sneezewort 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.