7 common mistakes when growing cannabis

7 common mistakes when growing cannabis


A good plant will never grow out of bad genetics, and the growing conditions will be more or less compatible, so choosing the wrong seeds may well be the first mistake on this list. There are always those that someone has given you because they found them somewhere, but saving on seeds can be very expensive. Maybe it’s just a mediocre plant, but it can also be a male or a hermaphrodite. Also, if the crop is outdoor or indoor, if the temperature is one or the other, if the height available is such or such, all this influences the decision that must be taken. The level of experience is also important: for beginners it may be advisable to start with the Indicas, which are easier to grow than sativas, or choose autoflowering. The Indicas also reach less height than sativas, and are more suitable for indoor cultivation. It is good to study the varieties and choose them according to the need and experience. 



Except in the first germination and in some transplants, in general the roots remain in the invisible world of the substrate. But the fact that they are not in sight does not make them less important, quite the contrary, so they need special attention at the right time, or we will see the signs when it is already too late. Only after the fourth week of flowering can it become obvious that the root has developed poorly. At that time the plants need more phosphorus and potassium, and an underdeveloped root system will not allow the plant to absorb and transport all the nutrients it needs. Therefore, the roots have to be cared for from the growing season onwards. For this purpose, organic rooting agents can be used, which are based on fungi and microorganisms that enhance the rhizosphere, as well as providing correct nutrition.



Like the carnivorous plant in “The Little Shop of Horrors”, the cannabis plant also needs to be fed. In this case, of course, it does not have to eat Steve Martin, but rather provides him with the necessary nutrients in its various stages through watering. But everything is in the right place: excess nutrients can be as big a problem as deficiencies, if not bigger. In general a plant with a good substrate (in general any Grow Shop has quality soil) does not need any fertilizer until at least its first month of life. The fertilizers that can be used afterwards must be used in the right measure, and above all, you must pay attention to the plant, its leaves, its colors… if something is wrong, you will surely communicate it that way. Practically any fertilizer available in grow shops has everything you need, although sometimes they recommend higher doses than you may need if you have small plants. Also, keep in mind that you don’t need to fertilize every time you water your plants. 



Watch the water! It’s good that the plant needs it, but too much water can be worse than too little. If the soil is soaked, the roots can rot, and there is no need to point out that this is bad. The soil should be moist to the touch, but not wet or full of puddles. If you have well-draining soil and containers with holes in the base, and you don’t obsess about drinking, everything should be fine. 

7 common mistakes when growing cannabis


Surely many had never even heard the acronym “pH” until he started growing, and now it turns out that it is a key issue. pH is a measure of the acidity or alkalinity of a solution, in this case the nutrient solution (which is usually nothing more than water). The pH has to be between 5.8 and 6.5, otherwise it can impact on the plant’s ability to absorb nutrients. To measure it, you can use one of the many pH meters on the market. 



The first harvest is something special. The fruit of so much work, the enthusiasm of the first time… but it is good, at that moment when one is looking at those buds and deciding whether to cut them at once, to remind Master Yoda: Control! A variety expresses itself at its best after proper ripening, and a drying and curing process that allows it to release its aroma, flavor and potency. An early harvest can result in mediocre marijuana, and poor drying can leave the plant unpalatable. It is important not to fall into the dark side, which is easier and more seductive: under no circumstances is hot air drying recommended, which will only result in a high chlorophyll herb. 



Pharaoh may have had problems with the biblical plagues, but unless one is the fruit of a divine curse of some kind, they should not be so complicated for the modern cultivator, as long as they are detected in time. A common mistake is to detect their presence when the plants are already quite affected. To begin with, prevention is paramount, so a healthy environment with good humidity and temperature levels is most important. With that covered, what you need to do is check often for signs of problems. Neem oil treatment is usually effective if used in time. In case of mould, it can be sprayed with a water-milk mixture and the growing space can be cleaned well. If the plant is infected with powdery mildew virus, caused by a fungus, the Bordeaux mixture is recommended: bicarbonate-water saturated mixture, hydrogen peroxide reduced with water, skimmed milk, sulphur. All these treatments are effective in the early stages, and will avoid having to resort to more aggressive products, so early detection is crucial. 


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