marijuana heat stress

Marijuana Plant Problems Every Grower Should Know

Planning to grow marijuana isn’t as smooth as you would think. Just like with any other plants, they require plenty of attention and a substantial amount of your time. That’s why as a potential grower, you must know what are the marijuana plant problems every grower should know, so when that time comes, you know how to deal with it.

Growing cannabis rewards you with plenty of yields if you are properly taken care of it; however, some circumstances will either make or break your yield. Nature has a weird way of controlling things, some of them are highly-addressable, and some are not.

So, if you want to know the common marijuana plant problems every grower should know, read further down below.

Most Common Marijuana Plant Problems Every Grower Should Know

There are many problems when it comes to growing marijuana, and here are some of them.

Heat Stress

Whether indoor or outdoor stress, your plant exudes very similar traits. For the most part, your plant’s leaves will turn yellow or mostly have burnt edges. For Indoor growers, the most common way to address this issue is by turning the indoor lamp far from the plants. In this way, they don’t cover all the heat coming from the lamp that gets them bleached.

Another way to address indoor heat stress is the appropriate position of the canopy. When it comes to the proper position of the canopy, the rule of thumb is to try placing your hand beside your plants, and when it does feel unpleasant or too hot, then it is highly likely that it will be the same case for your plants. Try adjusting the indoor canopy and try again; if it’s good for you, it is good for them too.

For outdoor stress, this part is very difficult to control because you rely solely on the sunshine. However, there are still effective precautionary measures that can be done to minimize light exposure. One of the basic measures needed is shading the plants; it does reduce the amount of sunlight exposure. Another countermeasure is watering them as often as how the soil looks. Outdoor shading is a cost-effective way to filter out some excessive exposure to sunlight. As always, it wouldn’t hurt hearing the news about weather variations.

Nutrients and PH Inadequacies

Volatile pH and nutrients are one of the most common marijuana plant problems every grower should know. Luckily, this is highly-preventable and is easier to remedy if you have all the necessary tools in your garden.

For hydro and coco, the optimal pH level should be around 5.5 to 5.7; anything less is more about that is already detrimental to the plant’s well-being. There’s a slightly larger margin of error for soil as the soil is more forgiving than those mentioned above hydro and coco, the optimal pH level for soil is around 6.3 to 6.7, as cannabis plants are more tolerable the soil compared to other growing mediums.

Over the course of the plant’s journey, there comes a time that there will be fluctuations due to various causes that may lead to plant dying here and there. When a cannabis plant exudes leaf discolorations, wilting, and burnt edges, these are the common signs that your plants are experiencing these fluctuations. The best way to mitigate the situation and let the pH cycle refreshed is by flushing the plants and soil with fresh water.

Overwatering of Cannabis Plants

Especially for first-time growers, these are some of the most common mistakes and problems they do and its result. And sometimes, too much of a good thing is a bad thing like overwatering your plants. When you overwater your plants, they tend to suffocate your roots leading to the plant’s death, and once it exudes rotting of the roots, this is imminent death.

To address this issue, ensure that the topsoil is quite dry or bone dry; it should look muddy. If you are just a beginner and don’t know how to do this, try monitoring your plants, and when one of them wilts, it is just about time to water them.

Overfeeding or Nutrient Burn

Just like with overwatering, overfeeding your cannabis plants leads to nutrient burn, overfeeding your plants with various nutrients such as potassium, phosphorous, nitrogen, and many more may lead to this. It is great to have your plants fed with what they need, but this should be done in moderation.

When plants are overfed, plants will inevitably show stress symptoms, especially when given at large doses. Nutrient burnt cannabis plants have visible symptoms when their leaves start to turn brown. When the browning of the leaves is going on, it will slowly crawl up and take over the leaf, rendering them lifeless after a few days.

Luckily, the best way to combat this is by minimizing the nutrients given to them. However, if they are in a setting wherein there is too much light, they tend to use too many nutrients. For hydro growers, the best way to mitigate this is by slowing down the water provided for the plants. For soil-based growers, the best way is to flush out the nutrients with a distilled water. In this way, excess nutrients should be washed off and prevents the leaves from further browning.

Wind Burn

Just like humans, cannabis plants enjoy a little bit of a warm or cold breeze. However, if the wind is too strong, they will immediately show signs of stress called “windburn.” This is prevalent within indoor growers as wind sources are placed in areas that are not efficient enough to blow wind evenly.

One of the most telling signs of a windburn is when the leaves try to curl up; these are evident to plants that are close to the wind source. Another sign is when leaves are constantly flapping ravenously; this signifies that the wind is too strong.

The best way to combat windburn is to adjust the wind source and not be close to the plants. Another way is by reducing the intensity of the wind. Luckily, these are quite easy to do and will always come in handy when plants start to exude signs and windburn symptoms.

Common Pests, Pathogens, and Plagues

Pests will always pose a threat wherever they may be. However, they can be easily prevented with just simple measures. Maintaining orderliness and cleanliness within your cannabis garden is the best way to prevent this. In rare cases, if this creepy crawlies do attack, the most likely culprits are the spider mites.

Spider mites are very common in an indoor growing setup. They are these tiny creatures that gobble up your cannabis plants and web up your growth and will ultimately ruin your cultivars. To combat this problem, you can just buy an anti-spider mite spray that is always available in your local shops or gardens.


There is no smooth-sailing cannabis growing journey; there will be problems that will soon arise. Luckily, if you have all the knowledge with some of the most common marijuana plant problems, then you are sure enough that when it arrives, you know how to deal with them.

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