Check humidity

How to control humidity levels to create optimal growing conditions for your cannabis plants

When growing cannabis, controlling humidity is an important factor in creating optimal growing conditions. In this article we explain how you can measure and control the humidity for the best results.

What is humidity and why is it important?

Humidity is the amount of water vapor present in the air. This is important for the growth of cannabis plants because the plants absorb moisture through their leaves and roots. If the humidity is too low, it can lead to dehydration of the leaves and growth problems. On the other hand, too much humidity can lead to mold and other problems.

How do you measure the humidity?

The humidity can be measured with a hygrometer. This is a device that measures the amount of moisture in the air and displays it as a percentage. Hygrometers are available in different shapes and sizes, from simple analog meters to advanced digital meters with different functions.

How do you control the humidity?

There are several techniques you can use to control the humidity. A commonly used technique is the use of a humidifier to increase the humidity, or a dehumidifier to lower the humidity. In addition, you can also adjust the temperature to control the humidity, since warm air can hold more moisture than cold air.

Another technique you can use is opening or closing vents to control airflow and adjust humidity. Just make sure you find the right balance between humidity and ventilation, as too much or too little ventilation can also cause problems.


Controlling humidity is essential to growing healthy cannabis plants. By measuring and controlling the humidity, you can prevent problems and create optimal growing conditions. Make sure you use the right equipment and techniques to keep the humidity at the desired level.

Note: Growing cannabis may be illegal in your country or region. Make sure you are aware of the laws and regulations before you start growing. The information in this blog is for educational purposes only and is not a substitute for professional advice. Always comply with applicable laws and regulations and contact local authorities if you have any questions.