If you have tried to cultivate cannabis plants, then you know how mold on cannabis plants can be devastating. To many people, this is the worst experience that will make them lose hundreds if not thousands of dollars. Nonetheless, you can learn how to deal with mold on cannabis plants, which will leave you at peace. For you to deal with the problem, you must know how mold on cannabis plants looks like. It is after knowing how mold on cannabis plants looks like that you can be able to deal with it.

Different Types Of Marijuana Mold 

Growing cannabis comes with many, many obstacles and none of these are more common or irritating than mould. Mould is as harmful as it is annoying, as well as being pretty tricky to treat, so here's a little advice on how to identify and prevent it from happening to you:

There are a couple of different types of mold that could potentially invade your cannabis garden, though there are two common ones: powdery mildew and botrytis, the latter of these being, essentially, bud rot. Botrytis is pretty hard to identify because of the fact it is really only super visible at the base of the stem. However, eventually some small leaves will begin to wither and dry out, which is a sure-fire sign that your bud is suffering.

If you do see some of your plant's leaves drying up, look a little closer and you might find some slightly furry details. Fluff can potentially begin to grow on the leaves of your treasured greenery that is blue or white in colour which is pretty harmless if treated right away. However, if you allow botrytis to advance then you might notice tiny black dots appearing in the mould these are spores, and they spread like crazy, so don't breathe them in!

Powdery mildew is another extremely common type of plant mould and can be observed to look like exactly as its name suggests. Powdery mildew is a white, dusty substance which lies on the surface of plant leaves and inhibits photosynthesis, which is your plants way of making its own food using light. Eventually, if your plants are suffering from this condition, their leaves will shrivel up and die, so it really is best to prevent powdery mildew from occurring in the first place.

How To Deal With Mold On Weed Plants

As mentioned in the beginning, the worst part of cannabis plant cultivation is when there is an invasion of mold, which, when it settles on the plant, does not seem to go away easily. But here are simple and ingenious ways to deal with mold:

  1. Pull Aside withered plant Buds
    Whenever you spot a withering cannabis bud, it is a sign that mold has invaded the plant. Instead of wasting time, it is prudent to pull off the bud. If you do away with it, chances are you’ll salvage the rest of the plant.

  2. Peek Inside The Cola
    The other thing you can do to prevent mold, especially grey mold from spreading, is peeking deep inside the cola. By doing this, you are merely trying to enable the cola to get moisturized.

  3. Chop Off The Affected Leaves
    Just as you would do to the affected bud, if you suspect that a part of the cannabis fan leaf has been affected, you will do better to chop it. Alternatively, it is advisable to remove all the leaves or buds of one plant than waiting for the mold to spread to all the other cannabis plants.

  4. Ensure There Is Proper Airflow
    One of the most significant contributors and facilitators of mold on marijuana plants is the lack of proper airflow to the plant. To ensure mold does not invade your plants, ensure there is adequate airflow to the crops.

  5. Inspect The Humidity
    The amount of heat and air in your piece of land is also crucial to taming mold on cannabis plants. Although this might be difficult for those who grow cannabis from the outside, it is still essential to check the humidity levels.

  6. Ensure Consistent Climate on Plants
    The issue of ensuring a consistent climate on marijuana plants is complicated, especially if you grow your plants in an open field. For those who cultivate cannabis from an enclosed area, it is more comfortable. You can use dehumidifiers and fans to regulate the internal climate around your crops.

  7. Control the Temperature
    Like any other crop, the cannabis plant and environment temperature is key to preventing mold on cannabis plants. To keep the temperature around your crops consistent, use available temperature control devices that will keep it at normal ranges while ensuring high airflow but keeping humidity at bay.

  8. Water and Feed Your Plants Well
    You may think that feeding your crops does not have any relationship with preventing or dealing with mold on cannabis plants, but sure, it does. A healthy cannabis plant can easily resist mold invasion compared to an unhealthy and poorly watered and fed plant.

  9. Space Your Cannabis Plants
    As it were, mold can invade your plants when they are congested. Again, it boils down to a lack of sufficient airflow. You need to ensure there is adequate space among your plants to prevent congestion, where mold thrives.

  10. Prune Your Cannabis Plants
    Again, the aim of pruning your cannabis plants is to ensure your plants have enough airflow, which in time will drive mold away from your cannabis plants.

In Case of Botrytis

The best measures to prevent both of the types of mould - as mentioned above - is to check your plants regularly and make sure they are receiving everything they need to grow correctly. However, preventative measures won't do people who are struggling with a mould issue now any good. So here are some gardeners tips for you if you and your garden are currently going through a mould problem:

In the case of botrytis, the only option you really have is to use chemical sprays to combat the mould's effects. You can purchase sprays to rid your grow of bud rot at pretty much any garden store. Another thing you can try is moving your infected plants to a warmer area with low humidity, this will stop the disease from spreading.

Natural Remedies

With powdery mildew, there are some natural remedies that have been tried and tested. To combat this type of mould, add two teaspoons of cider vinegar to one litre of water and spray it over your plants, this should do the trick. Another method is to mix a concoction of 60% milk and 40% water and spray this on them, this should also work some magic.

Overall, mould is a nasty, plant-killing culprit that has to be stopped, though luckily there are plenty of ways to get rid of it before it damages your plants too much. Preventative measures are the best course of action to take, but it is nice to know that more can be done if conditions get worse.

Good luck!

Frequently Asked Questions About Weed Mold

What Causes Mold on Marijuana Plants?

There are many causes of mold on cannabis plants. Some of the leading reasons for mold on marijuana plants include:

  • Lack of sufficient airflow;

  • Inconsistent climate;

  • Sudden rise and fall of temperature;

  • Extremely low or high humidity;

  • The improper spacing of the cannabis plants;

  • Inappropriate feeding of the cannabis plants.

How To Get Rid Of Mold On Cannabis Plants Without Pesticides

Pesticides may seem to be the only option that annihilates mold from marijuana plants, but it is not the only viable method. You can get off the mold on marijuana plants by using other ways that do not necessarily involve the application of pesticides. Some of the techniques include:

  • Regularly pruning your cannabis plants;

  • Chopping off the affected part(s);

  • Ensure there is constant airflow to your plants;

  • Use temperature regulating systems to ensure there is room temperature on the plants.

Is Mold On Marijuana Plants Dangerous?

Yes, mold on marijuana is dangerous. It can devastate your crops and affect the marijuana taste. To pot smokers, it can cause headaches, coughs, diarrhea, bated breath, vomiting, heart palpitations, endless sneezes, and possibly pneumonia.

How Does Moldy Weed Taste?

Rotten cannabis plants taste bad. The leaves are rotten; thus, the earthy taste smell isn’t pleasant or natural at all.


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