6 Common Cannabis Leaf problems and how to fix them – Hon&Guan

6 Common Cannabis Leaf problems and how to fix them

As long as you take care of the plants' needs for food and water as well as temperature, it's easy to grow them. When it comes to growing cannabis, it's almost certain that you'll run into growing problems at some point. None of the people I've ever met never have had any problems at all.

So don't be angry when things get worse. They happen to everyone who grows food.

Many people who grow cannabis have problems with the plant. It could be anything, from how much watering your plants need to the right temperature for them to grow well in. Before you start growing cannabis, you need to do some research and figure out the best way to do it. Also, try to make sure there is enough light for important processes like photosynthesis.

Before you start growing cannabis, you need to know what mistakes other growers make, so you don't make them yourself. To avoid making the same mistake again, try to grow your cannabis buds big and healthy.


Making sure you use the right soil

Soil is one of the most important things you can do to grow cannabis. Soil is the medium through which your plants get water and nutrients. If there are any microbes in it, then it must have a lot of nutrients. A light, airy soil with a good amount of perlite is what you should choose for your plants. In this kind of soil, roots can grow and nutrients can move through it easily, which is good for both. Also, choose soil that has been pre-fertilized and has nutrients like nitrogen, potassium, and micronutrients in it.


Soil that has been used to plant plants isn't full of nutrients and could be infected. You can buy high-quality potting soils from the market to improve the quality of your crops and make them more tasty. Grow cannabis in soil that isn't good for it, not just any soil.


Nutrient burn:

When plants get more nutrients than they need, they get nutrient burn, which is the opposite of a deficiency. A lot of people think that overfeeding is the main cause of nutrient burn, but it can also be caused by pH imbalances or nutrient lockout. Dry, brown, and sometimes curled leaf tips and edges are some of the signs of nutrient burn.

You must follow a strict feeding schedule and check your pH and EC levels before and after each feed to make sure your plants aren't just getting the nutrients they need, but can also use them properly.

It's important to note that nutrient burn is usually only caused by the use of chemical fertilizers. If you use organic nutrients that have a slow-release formula, you're less likely to get nutrient burn because they take longer for your plants to break down and get the nutrients they need from them.


Overwatering and underwatering;

Even if you water your cannabis too much or not enough, it can have a negative effect on many of the plant's biological processes, which can cause stress and slow growth. Overly wet or dry soil also draws pests like fungus gnats, spider mites, and more, depending on the weather.


Unfortunately, both plants that get too much water and plants that get too little water have the same symptoms: their leaves droop, and over time they'll start to die and wither. The soil, on the other hand, will often tell you where you're going wrong. If it's bone dry, you're probably watering too little, and if it's wet and sludgey, you're probably overdoing it.


Make sure you don't over- or under-water your plants.

  1. It's best to stick your finger about one knuckle deep into your soil. Only water it when it's completely dry.
  2. Keep your soil light and well-aerated. Make sure your pots have enough drainage holes.
  3. If your plants have a lot of leaves, cut them off or lollipop them. This will help the soil dry faster
  4. If you want to learn more about the best way to water cannabis plants, check out our guide.


Root rot:

When you grow plants in soil or coco, bacteria and fungi can grow around the roots because of drainage problems or overwatering. This makes stagnant water build up around the roots, which makes it easy for them to grow.

It is usually caused by too much heat, light leaks, a lack of oxygen in the reservoir, or decomposing matter in the water. All of these things let root-eating bacteria and fungi (like Fusarium) get into your water.

People sometimes find the smell of decaying roots unpleasant. They look brown and slimy and sometimes smell bad. Plants with root rot will droop and wilt above ground, with yellow or white leaves. Deficiencies can also be caused by root rot, which makes it difficult for the plant to get the nutrients it needs from its soil.

When you want to get rid of root rot, you'll need to give the plant's roots a dose of good bacteria to fight off any bugs. To grow in the ground, you need to move your plants into new soil and new pots, making sure your soil is well-aerated and that your pots have enough drainage holes.If you are growing plants hydroponically, you will need to clean and sanitize the entire equipment, make a new reservoir with a lot of oxygen, and fix any light leaks or heat problems that you have.





It's different from other plants in that cannabis can only take in nutrients in a small range of pH. If your soil, water, or fertilizer is outside that range, your plant won't be able to get the nutrients it needs. You might also have to deal with nutrient deficiencies and/or lockout down the road.

Plant pH affects how much nutrients and water the plant can take in. You need to get your hands on a pH metre or measuring drops to keep an eye on the pH from time to time. It helps you figure out what your plant needs in terms of nutrition and other things. Also, soil-grown cannabis should have a pH level between 6 and 7. People who use hydroponics need a pH level of between 5.5 and 6.5 for faster growth and healthy buds. Make sure to check the pH every day and use the pH up and down products on the market to change it. That way, you get a hassle-free and easy kind of marijuana in a short time.


Common cannabis act

The size and quality of your harvest can be harmed by a fungal infection that you get. Fungal problems are very common for both people who grow plants indoors and people who grow plants outside.



Septoria, also known as yellow leaf spot, is a fungus that eats the leaves of your plants and makes them look yellow or brown. When plants start flowering, it usually starts to eat them. It usually starts on the lower parts of the plants first. As long as septoria isn't treated, it moves up the plant. Even though it usually doesn't get to buds, it can eat a lot of leaves. It also hurts the ability of plants to photosynthesis, which slows them down and reduces their growth and yield, so it's bad for them.



Pythium is a type of parasitic algae, which used to be called fungi. It eats the roots of cannabis plants. A major reason for root rot is this: While Pythium can attack cannabis plants at any stage of life, seedlings are more at risk because their soil is wet.


As long as you're growing your plants in water, you'll have an extra advantage when it comes to spotting Pythium infections. Brown discoloration and a gooey, gooey, or slimy mass around a plant's roots are both signs of root rot. Not only that, but Pythium is responsible for almost 90% of root rot cases.


Unfortunately, if you're growing in soil or passive hydro systems like coco or perlite, it's very hard to tell if your plants have Pythium because it causes a wide range of symptoms above ground that can look like everything from nutrient deficiencies to light burn.



One of the most common fungal problems for seedlings is damping-off. Most of the time, it's caused by fungi like Pythium, Botrytis, and Fusarium (more info below). It doesn't matter if these fungi are already in your soil or if they were brought into your grow room or garden by another plant. They attack the stems of young seedlings, making them limp and killing them off in less than 24 hours.



Verticillium is another fungus that is bad for plants. During this time, it can lay dormant in the soil. It can then sprout and attack your plant's roots. This happens over time. The fungal growth eventually spread to the plant's xylem, which is the vascular tissue that moves water and nutrients from its roots to other parts of the plant.

It grows, and as it does, the fungus gets in the way of the xylem, which stops water and nutrients from moving through the plant. This causes parts of the plant to die back and wilt (including leaves, branches, and flowers). Verticillium can also make the stem brown where it meets the soil.

Verticillium spreads quickly and does a lot of damage to the plants it eats. In your garden, the best thing to do is to get rid of the plants that are infected and clean your grow tools so that the fungi doesn't spread. To avoid getting infections again, you must remove all of the topsoil.


Cannabis is a plant that comes from Central Asia and needs the right conditions to grow. If you're new to growing cannabis, you need to learn the right way to do it. You can start by learning how much water your cannabis plant needs. Also, know about the different ways to sterilize cannabis to keep it safe while it grows. Try to give the plant the right amount of light, no matter where it is. If you want, you can check the pH levels every week and change them so that the pH level is back to normal again. There are a lot of things that you can do to make sure that your buds are both healthy and fat in no time.



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