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how to start growing hydroponic weed

How to start growing hydroponic weed

Have you seen cannabis plants growing with their roots just floating in a reservoir of water? This type of hydroponics is known as Deep Water Culture (DWC), and has been around for over a 100 years! As more growers gain experience with this medium, DWC has become increasingly popular for growing cannabis. Hydroponic setups are really neat and offer some big benefits over growing in soil!

Growing in coco coir can be considered a type of hydroponics since it naturally contains no nutrients and you must provide all the nutrients in the water. However, when you say “hydroponics” most people think of this:

Today I’ll teach you how to set up your hydroponic reservoir for growing cannabis, and I’ll show you what you need to do each day for optimum growth

When it comes to hydroponic cannabis…

Hydro is a no-brainer for me. Whenever I go back to a hand-watered grow like coco coir, I am always surprised by how much extra time it takes to water plants and remove the runoff. The most intimidating part of hydro is just getting started – after that it’s actually really easy to take care of your plants. In my opinion, hydro is far easier and less time consuming than growing in soil or coco coir once you’re set up. If you are interested in hydro, go for it! If you follow this tutorial you will succeed!

Is Hydroponics Good for Growing Cannabis?

Cons of Hydro

How to start growing hydroponic weed

To cut it short, K is vital for the overall plant growth.

As discussed, hydroponics is a technique of growing plants indoors without using soil. Now, it can be any plant, marijuana, cannabis, or even garlic. But, we are explicitly talking about cannabis/marijuana in this article.

Now you can turn on the air pump and the water pump to check if the system works fine. The air pump should keep the reservoir oxygenated while the pots should drain out extra water back to the reservoir. There should not be any stagnant water throughout the process.


The early growth phase of a cannabis plant requires Potassium that enhances protein production, flowering process, movement of nutrients and water in the tissues etc.

You must have seen farmers putting fertilisers in their plants to control pests, keep them healthy, and enhance growth time. But, this is the case only with soil plants. When it comes to hydroponics, your nutrient mix is the only thing that your plant would need.

Out of all the salts mentioned, Nitrogen, Phosphorus, and Potassium are the essential ones. Usually, a nutrient solution is referred by the percentage of these three salts in the form (N-P-K). So a 15-16-14 solution would contain 15% Nitrogen, 16% Phosphorus, and 14% Potassium. The rest of the solution contains water and the microelements.

What is a drip line hydroponics system?

The amount of nitrogen that you are giving to your plants highly depends on the grow room temperature. If it’s below 80 degrees, the nitrogen amount should be higher. While if it’s more than that, the concentration of N can be less.

Since every element is given in different amounts to the plants, it’s crucial to keep a quantity check on the solution.