How to detect nitrogen toxicity in cannabis growing

Written by on 9 June, 2020

How will you know when a marijuana plant is deficient in certain nutrients such as nitrogen, can be greatly affected, and likewise, if it receives an excessive dose of this element. That’s why it’s very important to take care of how much is supplied to your cannabis growing.

However, how do you know if you have exceeded the amount of nitrogen? Don’t worry, this time we will tell you what the symptoms are that will allow you to realize if your plantation has nitrogen toxicity.

Signs of excess nitrogen

As you know, nitrogen is an indispensable compound for the correct functioning of the plant, but in exaggerated doses, it can have the opposite effect.

In these cases the marijuana leaves tend to be a deep green shade, their tips look burned or the leaves look like the claws of a bird with the ends pointing downwards, this last symptom also tends to occur when the growing is over-watered. You must be vigilant anyway.

Plants also become weak and sensitive, making them more susceptible to mite invasions. If the nitrogen toxicity remains for a long time, it will take longer for the plant to recover.


Nitrogen toxicity is very common, especially during the flowering phase, because during this period, the plants do not need large amounts of this element, and an inexperienced grower can make mistakes in the dose he supplies.

Another thing to keep in mind is that every cannabis strain is different, so the dose for each strain may also vary. Be well informed to avoid any inconvenience.

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