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Catmint · Nepeta

Why does my catmint have root rot?

It is less common for catmint to get root rot because it prefers dry soil. This usually happens when the plant is stuck in heavy, clay soil that holds too much water.

root rot on a plant
Photo: Ninjatacoshell, CC BY-SA 3.0

Check these first

  1. Feel the soil to see if it is constantly wet.
  2. Check if the soil drains quickly after rain.
  3. Inspect the base of the stems for soft or discolored tissue.

Likely causes

  1. Poor Drainage

    Possible

    How to tell: The base of the plant looks mushy and the foliage turns yellow or brown. You might notice a sour smell coming from the soil.

    What to do: Stop watering immediately to let the soil dry out. If the soil is heavy clay, dig up the plant and amend the area with sand or compost to improve drainage.

  2. Overwatering

    Possible

    How to tell: The plant looks stunted and the leaves are dropping off. The soil remains soggy for days after you water.

    What to do: Adjust your watering schedule to every 7 to 14 days. Only water when the top 2 inches of soil are completely dry to the touch.

Find out what's wrong with your catmint

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 stems are black and mushy at the base, as this indicates the rot has spread. If the entire plant is collapsing, it is likely too late to save.

Stopping it coming back

Plant catmint in a sunny spot with well draining soil. Avoid planting in low areas where water tends to pool after rain.

Keep your catmint healthy from here

Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.

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Questions people ask

Can I save a plant with root rot?
If you catch it early, you can improve drainage and reduce watering. If the roots are already black and slimy, the plant is likely unsalvageable.
Does catmint need a lot of water?
No, catmint is drought tolerant once established. It prefers to dry out between waterings.

More problems with Catmint

Back to the Catmint guide

This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.