How to Grow Autoflowering Cannabis Hydroponically

How to Grow Autoflowering Cannabis Hydroponically

Planting autoflowering marijuana strains in good and healthy soil is the most effective and the easiest way on how to cultivate marijuana. However, there is also another known way. It is called hydroponics, a technique of cultivating plants without the usual medium, which is the soil. Instead, it used the nutrients found in water. Hence, the name hydro. For a beginner grower, this may sound difficult and challenging to manage. However, there are other growers who choose this for convenience and all other advantages. Learning how to grow autoflowering cannabis hydroponically can also be beneficial to the grower’s autoflowering experiences.

Understanding how hydroponics work is one step in realizing its best potential for marijuana plants. Planting the plant hydroponically is known for giving productive and a more private way on how to grow the plant. The technique itself is letting autoflower plants grow in water that is filled with nutrients and oxygen. Since there is no soil involves, all the necessary nutrients are infused in the water. The process can still give the autoflower plants the essential things needed for growth, such as water, air, and nutrients. It is also easier for the plant to absorb the nutrients without the need for having extra thick roots. Growing hydroponically also gives the grower control over all the variables needed. Thus, when using this technique, the plants noticeable grow faster and healthier.

Growing hydroponically vs Growing in soil

Knowing the difference between growing hydroponically and growing in the soil can help determine the differences and the advantages of how each system works. The soil is where nutrients like potassium, nitrogen, phosphorus break down and where they are absorbed by plants when water dissolves them. For the plant to get the absolute balanced amount of these nutrients, all those nutrients must be proportionally balanced in the soil.

However, this could be very difficult to do when using the soil. Measuring the exact amount of nutrients found in the soil is difficult, and the plant would take more effort by expanding its root towards where the best nutrients are. Only when the nutrients are dissolved in the soil can the plant absorb it. However, with hydroponics, the water can be a mixture of all the essential nutrients needed at a fair and practical amount. Thus, letting the plants get the best and equal parts of everything. This makes growing autoflowering plants hydroponically an effective and worth a try.

How to grow autoflowering cannabis hydroponically – Medium

To learn how to grow autoflowering cannabis hydroponically, there are basic set-ups and equipment needed to build to make the perfect hydroponic growing set-up.

The first step is finding the growing medium. No, this doesn’t require the soil, but other hydroponic growers that can be accessible for this type of cultivating method. Growers generally have many choices, and some of them are Rockwool and lava rocks. When it comes to the ways on how to grow autoflowering cannabis hydroponically, Rockwool or stone or mineral wool is commonly used because of its properties; retains moisture exceedingly well and is airy, which allows air to pass through for the plant to get its daily dose of oxygen. The downside of this medium is its price. It can be quite expensive but does the job well. The second one is the lava rocks. They are also the best choice since they are inactive, do not consume water, and allows enough aeration. They are also reusable and Ph neutral, which makes them very effective.

How to grow autoflowering cannabis hydroponically – Growing System

There are different systems on how to grow autoflowering cannabis hydroponically. These systems help the plants get their needed nutrients through water. These systems make growing autoflowering cannabis hydroponically effective.

The first system is the Ebb and Flow system. This system is done by temporarily submerging the growing trays with the plants’ nutrient solutions and then draining them after as the water goes back to the reservoir. To help the job, there is a submerged pump inside the reservoir that is connected to the growing tray above.

The timer prompts the pump to let the water go up into the tray, and once the time stops, the pump stops pumping water, and the overflow takes all the excess solution back into the reservoir. The timer is set to let the pump go on and off several times on a day. The number of times will depend on the plants’ size and the type and the growing medium used. This works well, whether using Rockwool or lava rocks. Thus, the basic idea of Ebb and flow, it to flood the plants with nutrient solutions and to drain them after a couple of moments.

Another system on how to grow autoflowering cannabis hydroponically is through aeroponics. It is growing plants without the use of soil. The roots of the plants are suspended in the air while they are sprayed with nutrient-filled water. The plant is both exposed to the nutrients spray and the needed light to grow. Thus, the roots get the needed light, oxygen, nutrients, and water.

The next system on how to grow autoflowering cannabis hydroponically is through deep water culture. This is known to be easy and inexpensive. This method is done by hanging the roots of the plant is the nutrient-filled solution and oxygenated water. This method also applies the uses of rafts to hang the plant well into the water for about eight to twelve inches deep.

The essentials on how to grow autoflowering cannabis hydroponically

There are some essentials needed for the autoflowering plants to grow well when using hydroponic methods. These essentials are needed to ensure healthy leaves and bigger yields.

The water

The water must also maintain the Ph level of around five to six. This is the range of where the plant can grow healthily and well. It is also best to check the water flow, pump power, and any holes to see if there are any mishaps that might cause any waste of water and damage to the plants.

The nutrients

There are many nutrients an autoflower plant needs such as sulfur, calcium, iron, and so forth, but the basics are the three nutrients: potassium, phosphorous, and nitrogen. There are ready-made mixed minerals available in the market, but the mixture can also be done by the grower. It just needs to follow the formula of mixing fifteen percent of each solution in water. Make sure to not over mix or make too many solutions, for it might be a waste if the plants won’t consume them all.

The light

Just like growing autoflowering plants traditionally, or hydroponically, the autoflower plants also need a sufficient amount of light. It is the basic need of the plant that must not be missed, or else the growth of the plant will decline even with the proper amount of oxygen, water, and nutrients. Thus, the same lighting used when cultivating autoflower can be used. Make sure they don’t get too hot, for it might be dangerous.


After knowing how to grow autoflowering cannabis hydroponically, it can be concluded that it could be one of the best ways to grow autoflower indoors. It is not as complicated as it sounds, and it can be done easily even for a beginner grower. They are a sure way on how to grow excellent quality autoflower plants. It also depends on the preferred way a grower would want to cultivate the autoflower plants. Aside from the easy ways on how to set the hydroponics systems up, there are also advantages to how convenient and interesting it is to grow it hydroponically. For example, there would be no use of any soil, and this fits well with growers who don’t want to deal with dirt all the time. But since there is the equipment needed, a grower has to spend money in order to build an effective and convenient system for the autoflower plants.

However, when a grower decides on cultivating the autoflower plants hydroponically, it might come as a surprise to see the significant differences in the quality of plants and yield. Thus, learning how to grow autoflowering cannabis hydroponically is a must-try for autoflower marijuana growers who continue to experiments on ways on how to make the most of the autoflower seeds.

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