7 Signs Your Cannabis Plant is Sick

If you are willing to grow cannabis, you should know about the possibilities of this plant’s death and decay. It permits you to prepare well before you indulge in farming. Cannabis plants are created with the capacity to withstand harsh environmental conditions and even then develop the best return. It is elastic and develops in any kind of soil. But growers should not take these qualities for granted. Attending to your crops throughout their growing process would help you overcome problems like nutrient scarcity, pests‘ strikes, stress, diseases, and imbalances in pH level. There are pros and cons of developing cannabis, both outdoors and inside. Don’t worry as your crops will indicate the symptoms of what’s wrong. You will have sufficient time to take actions and measures to conserve the plants. Largely its leaves reveal the first signs of disorder that you have to recognise punctually and operate on it immediately. Below are a couple of of these to help you identify the problems correctly.

Nutrient Deficiency and Nutrient Burn

Either way you are not consuming enough that triggers lack, or you are feeding more than necessary that triggers burn. Knowing the right quantity can keep your plants in a healthy shape until the harvest time.

Nutrient Burn- Normally, beginners have a tendency to overfeed the crops to get productive return. Giving them a hefty nutrient mix and often will make the roots absorb more than the plant can utilize. The plant’s leaves will turn brown on the trick and look brittle.

Nutrient Deficiency- The deficiency occurs when the plant does not receive an adequate source of nutritional elements like iron, potassium, magnesium, phosphorus, calcium, nitrogen, and zinc. The Way to identify? All nutrient deficiency will show a change in the colour of their leaves. For example, for nitrogen deficiency, the lower leaves will turn yellow in the vegetative stage. When the yellowing is spreading quickly, and your plant is dropping several leaves, it requires nitrogen. Again, in the case of potassium deficiency, the plant will grow taller than the others and extend, causing its stalks to become feeble. To avoid them, nourish cannabis plants with whole fertilisers offered for cannabis farming.

Issues also happen when the pH level of water or soil isn’t in balance. If it fluctuates from high to low and vice versa, the leaves will start showing yellow and light brown spots on the leaves then proceed upwards. An incorrect pH level is a leading cause of cannabis plant ailments. That is why should the range is wrong, there are opportunities for the plants to have problems with nutrient lockout issues. It’s a circumstance where the crops ceased absorbing the nutrients, and providing more fertilisers will only ruin the health. As soon as you determine the issue, treat it immediately. When it’s a hydroponic system or hand water system, maintaining an eye on the pH scales is extreme necessary to understand the acidity of water or soil. So before summing upon any other issue, assess the pH level. Ideally, a neutral range must be around 6-7 for the soil system and 5.5-6.5 for a hydroponic system. It can help to trust authenticated Canada weed dispensary if purchasing the seeds, as they don’t have some adulterations in them. Get a testing strip or pH meter out of any good cannabis seeds supplier who also stocks growing supplies. Be certain that the soil mixtures you purchase allow you to adjust the amounts.

Pests and Viruses

These unfriendly critters come in various shapes and sizes. Pests include spider mites, aphids, whiteflies, leaf miners, and thrips. We will discuss a few below: Spider mites- All these invaders harm the crops that you cannot kill simultaneously. Spider mites have eight legs, but unlike the regular spiders, they don’t have the antenna. Their web covers around your leaves and blossoms restricting them of expansion.

Spider mites- will eat the chlorophyll that’s necessary for the plants’ photosynthesis procedure. Also, the pace at which it could reproduce is unthinkable. Aphids- You may find them on the bottom of their leaves. Aphids are usually green in colour, having long legs and wings. You’ll require a trichome scope to spot them.

Aphids- feed on the nutrients and water from the cannabis leaves, which turn them fade, leading to the departure of the entire plant. The injury goes beyond eating the nutrients. Aphids also bring along viruses which can inhibit the development of your cannabis plants and postpone the flowering stage.

Thrips- Much like aphids, the thrips are small-sized insects that will dig a pit in your plant and then suck all the liquids. You will know it when you detect your leaves and stalks turning bronze or silver coloured.

Whiteflies- On shaking the plant should you see something similar to a white moth flying around, that’s whiteflies. These are also as catastrophic as the above. Feeds on cannabis plants, bring viruses from a really remote place, reduces growth, and spreads disorders. Be cautious of the other dangers like cats, dogs, moles, and rodents that can ruin your endeavour. You can produce fences or chicken wire to stop dogs and cats, but the battle is present in preventing your crops from small sized ones. They will dig holes to reach your garden and simmer for food. Make sure that your growing space does not allow any environment to entice these.

After pests, it is the disease that may ruin your crop if you don’t find the signs early. There are different forms of this disease like bud rust, powdery mildew, root rot, and algae.

Bud corrosion – high humidity, less airflow, spider webs, fungal disease, and overwatering can lead to bud rot. Your cannabis plant’s bud initially rots inside which slowly reveals in the top whenever they start turning brown, decay and finally ruin the entire bud. Giving sufficient airflow and enabling the plants to stay dry can help stop bud rot. If you’re growing indoors, be sure that they receive good sun and proper ventilation. Cut off the affected buds to safeguard the whole plant out of rotting. Powdery mildew- it’s a fungus that can ruin your cannabis return.

Powdery mildew- appears like white or gray snowy and feathery mold. These can form over the leaves or beneath and spreads more eating up the entire crop. Once more, the triggers can be humidity and low airflow. There are sprays available from the local shops to eliminate this illness. It can remove mildew effectively.

Root corrosion – The title suggests which region of the plant it impacts. It’s tricky to spot the root rot disease since its happening indoors. Those plants that appear tired, dry, less growth are likely suffering from root rot. Less oxygen and overwatering may cause the disease. Furthermore, if your plants are experiencing different disorders, the disease may strike easily. Sterilising the marijuana can be a remedy to the issue.

Algae- It is suitable for algae to consume the nutrients and oxygen out of your cannabis crops. Growers misconceive it harmless and allow them to develop without noticing that it is draining the produce. If you leave them on your crops, it will find the chance to reach to the roots resulting in their passing.

Weather- These anxieties include wind, cold, humid, hot weather situations. And the downside of it is you cannot govern these natural conditions. Though cannabis plants have the immunity to grow in not much polluted surroundings, however these stresses can restrict its natural growing process and invite certain difficulties. Each strain will have a different set of methods to take care of cannabis development.

Heat- Outdoors or indoors, if the temperature needed for effective growing increases, it will cause heat stress. It impacts the photosynthesis process and breaks down the proteins resulting in the passing of the plant. Factors like external light, temperature, and evaporation bring about developing the temperature. The perfect temperature should be close to 75 degrees Fahrenheit. If this exceeds, the evolution process will postpone giving you less potent produce.

Hermaphrodite- The problem arises when the yield is a blend of both male and female cannabis characteristics. These are hermaphrodites, considered as not very useful for growers since it produces in-consumable buds. But even then these are useable for future growth. The causes may be genetics or environmental stresses. Make sure that you can identify hermaphrodites early so that you could do the pruning during their vegetative stage rather than when they start flowering. Lighting pressure occurs in these plants positioned near the lights. Their leaf starts to burn off and turns yellow. When you notice it, lift the lights a few inches higher to keep space.

Watering Issues

Under-watering and overwatering is a concern whilst growing cannabis plants which can make them ill. It mostly occurs among beginners as they are learning to grow, and understand their crops. Even when you are giving the plants enough water, it might be shedding more . When you water the leaves start to wilt, when you overwater, they will flake out and seem to be stiff because of excess of water. For the drooping leaves, pour water immediately and if you’re overwatering cut the frequency down. Keep the balance by keeping view certain variables such as the plant’s size, container size, root level, humidity, temperature, and stage of the plant. Also, make certain that the quality of water that your plants are getting is coming from a good source. Filtered, rather than tap water may benefit the development of the plants. So, instead of buying seeds from local dealers online dispensary Canada would be the best alternatives to go for since they have the proper components including adequate water within it.


As soon as your cannabis plants catch a virus, then it may turn fatal, destroying the other plants growing along. It impacts the chromosome of the plant and to conserve the other plants toss the one.

The signs include yellowish-green ring-like patches or mosaic which may spread rapidly. The leaves also reveal creases and curves . As the leaves start dying, the overall health of the plant deteriorates. Normally, the aphids bring this virus through the summer and fall seasons. It finally becomes hard for the plant to recover its natural growing capability. To stop, keep the environment clean and sanitise yourself prior to entering the growing space.

If you see irregular spots and marks on the leaves, the odds are these are germs on your crops. However, some growers don’t observe any symptoms of it.


These were a few frequent signs that your plant is unwell and needs appropriate care. There is not any need to rush or fear in cannabis cultivation. You will find different types of Marijuana that someone can choose from when contemplating to grow them in your home. It is a smooth procedure if you understand the precautionary steps well. For novices, take it slow and gather knowledge from experienced growers prior to starting.

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