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Eurasian watermilfoil · Myriophyllum spicatum

Why are the tips of my Eurasian watermilfoil turning brown?

Brown tips on watermilfoil are often caused by poor water circulation or mineral buildup. Check your water flow first to ensure the plant is getting fresh, oxygenated water.

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Check these first

  1. Check if the water is moving or completely still.
  2. Test the water hardness levels.
  3. Inspect the tips for any signs of physical damage.

Likely causes

  1. Poor water circulation

    Most likely

    How to tell: Tips turn brown and mushy in areas where the water is stagnant.

    What to do: Add a small water pump or air stone to increase movement. This helps distribute nutrients and oxygen evenly.

  2. High mineral content

    Possible

    How to tell: Tips turn brown and brittle, often with a crusty residue.

    What to do: Perform a partial water change using distilled or reverse osmosis water. This lowers the concentration of dissolved minerals.

Brown tips on other plants

Find out what's wrong with your eurasian watermilfoil

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 browning spreads down the stem toward the roots. A single brown tip on an otherwise healthy plant is usually not a cause for alarm.

Stopping it coming back

Keep the water moving gently and perform regular partial water changes to prevent mineral buildup.

Eurasian watermilfoil: brown tips? Check yours with a photo

Every plant is a little different. Take a photo of your eurasian watermilfoil 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 cut off the brown tips?
Yes, trimming the brown tips helps the plant focus its energy on healthy growth. Use clean, sharp scissors.
Is my water too hard?
Eurasian watermilfoil prefers moderate water conditions. If your water is very hard, it may cause mineral deposits that lead to tip burn.

More problems with Eurasian watermilfoil

Back to the Eurasian watermilfoil 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.