Mint Plants
Q.

Problem wıth indoor grown mint

Zone bern | ezgi added on December 19, 2018 | Answered

Hello, I am growing mint indoor. But my mint started to have these brown dry areas in the leaves. I am checking its soil but it is not dry or so wet. What are those and what can I do to prevent these? Thank you

A.
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BushDoctor
Certified GKH Gardening Expert
Answered on December 19, 2018

It appears to be a fungal infection. This can also be confirmed with the growth on the soil. This happens most often from overwatering, or the water not evaporating off fully from the top two inches before watering again.

This can be controlled in a few ways. I recommend doing all of them as a maintenance routine.

Mix peroxide and water at 1/4 peroxide to 3/4 water. Water this in once, and allow to dry fully down to two inches before watering again (This time without the peroxide. This only needs done once, and if infections returns)

Increase airflow... This will help drastically with evaporation of water. A fan will do in this case.

Increase sunlight... The plant looks slightly stretched, which will indicate that it is not getting quite enough light. Sometimes even a southern window can be lacking, as mint requires quite a bit of light to thrive. If there is no way to get more light to the plant, then you may consider a horticultural grade light to keep the plant under. This will also help to evaporate water.

The idea is that you want the plant as healthy as possible and the conditions just right so that the plant cycles water as fast as possible. When they cycle water, they also take in nutrients. If one or more factors slows this process down, so then does the rest of the plant's processes.

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