How To Identify Root Problems In Marijuana Plants

Taking very good care of the roots will result in a happy plant, which is exactly what you want. Read this article and learn how to identify and prevent root problems with your marijuana plants.

How do root problems occur

how do root problems occur

There are several causes for root problems, including temperature, pot sizes and soil. Here the reasons this happens:

Putting a little plant in a large pot

As a seedling, being in a large pot will usually make it hard for the plants roots to receive the right amount of oxygen. You have to be sure never to overwater your plant until it begins to grow up and start filling the pot. Start off slow, watering it a little in a circle around the seedling, until it is growing more rapidly.

Having a large plant in a small pot

If the roots end up beyond the size of the container your plant is now what we call “root-bound”. When this happens it and will start showing evidence that it has root problems. You will have to move your plant to a bigger pot to avoid suffocating the roots.

Cold Temperatures

Roots will not thrive if they are cold. The cooler temperature surprises them causing the roots to wither.

Hot Temperatures

Marijuana roots will definitely have problems at high temperatures.

Hydroponic Systems

A lack of oxygen creates root problems since it will be too hot or it isn’t airing out properly.


With plants that are grown in pots, excessive watering will lead to root problems.

Lacking a Hole for Draining Water

the water has to be able to get out or else the roots will literally be overly submerged.

The Soil Is Muddy And Thick

When the soil is dull and soggy instead of soft, could be because the soil is lacking the oxygen required to fully support the roots.

Hydrogen peroxide to fix root problems

hydrogen peroxide to fix root problems

If for any reason you hear that hydrogen peroxide is good for root problems, immediately dismiss this advice. This only help for a short period of time. No matter what type of H2O2 you use, it will no longer be present once a 24-hour period has passed.

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    When H2O2 is added to water, it will literally destroy the bacteria present in the water regardless of good or bad. However, this lacks the ability to kill off all bacteria, which means it is possible that a few of the bad bacteria will be around reproducing. At the end of the day, hydrogen peroxide in no way takes care of the core problem, which is the reason root problems exist. This will also be the cause of death for the good bacteria in the water or soil. There is a possibility it will make everything even worse off than before.

    Marijuana plant symptoms

    marijuana plant symptoms
    • Edges are burnt
    • Leaves are yellowing
    • Leave are red or pink
    • Brown spots
    • Leave are falling off
    • Leaves are curled and sagging
    • Roots are smelly and brown

    Your plants leaves may never thrive again until you deal with your root problems. When helping your plant recover, make sure you are aware if the issue is no longer expanding and watch to see that the newer leaves come in very strong and lush.

    Remember that plants with strong genetics have less change of getting sick and are less vulnerable for diseases. So make sure to buy marijuana seeds from a trusted seed bank.

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    Thanks for reading. Please leave comments or questions below and don’t forget to download my free grow bible


    Avatar for Robert Bergman

    Robert Bergman

    Robert Bergman is an Amsterdam-based marijuana grow expert who has years of experience from small grows to massive operations. His passion for growing led him to develop his own Gold Leaf strain. Now, Robert is dedicated to sharing his knowledge with the world.... [Read full bio]


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