How To Grow Marijuana Hydroponically
Although growing methods vary from grower to grower, there’s a common method that a large number of enthusiasts prefer, and that’s growing marijuana hydroponically. One of the main reasons why people prefer this method is that it offers a shorter grow time and higher yields in comparison to growing marijuana plants in soil. Although beginners may find hydroponic growing a bit tough, there’s no need to worry, as this article discusses all the ins and outs involved with hydroponic marijuana growing, allowing you to use this method without much difficulty.
Hydroponics Explained
Marijuana offers a lot of flexibility when it comes to growing. You can grow it in varying conditions and climates with the right amount of care and attention. You may find it surprising, but cannabis plants can grow without soil, too. However, they do require a sufficient quantity of nutrients and water – two things abundantly present in soil. Nonetheless, if the plants can get adequate nutrition from somewhere else, they can easily do without soil. This is essentially the main principle involved in hydroponics. The word hydroponics consists of two Greek words – hydro, meaning water, and ponics, meaning soil. Hence, hydroponic marijuana simply means growing your weed in a nutrient-dense water solution or a dormant growing medium rather than in soil.
An Efficient Alternative To Soil Growing
Growing marijuana hydroponically has tons of benefits associated with it in comparison to soil growing. It tends to deliver quicker results of higher quality buds because the process is designed specifically to provide readily-available adequate nutrients and air straight to the root of the plant. For hydroponic growing, you don’t have to be concerned about under or overwatering your plants, as a hydro reservoir proves to be more than effective during this process. Once you set up the hydroponic reservoir, you won’t need to worry about regular watering or runoff removal.
Choosing hydroponics also gives you a lot of control over the level of pH and PPM, and open root systems allow for the efficient circulation of oxygen and nutrients. This is excellent for growers who like to tweak their plant’s nutrient intake. The timely provision of nutrients and oxygen helps the plant to grow swiftly and results in bigger yields. The reason behind the better yield is that the hydroponic process allows the grower to have more control of the quantity and quality of nutrients they provide to their plants, giving them exactly what they need to reach full yielding potential. In classic growing practices, some of the nutrients stay in the soil and cause underfeeding of the plant. Therefore, the lack of control over nutrients can often be bad for your yield. If you follow the process properly, you will attain the highest yield potential possible.
Choose Proper Seeds For The Best Yields In Hydro
Proper strain selection is vital for effective hydroponic growing. Plants that grow in these systems absorb nutrients extremely quickly, resulting in rapid and explosive growth. Because of this, choosing a huge variety of Sativas will do you no favors, especially if your setup is inside a tent or any other indoor space. Strains that are compact and smaller are a perfect match for hydroponic systems, particularly for those indoors. It would therefore be advisable to start with smaller strains, as there are several advantages associated with it. For instance, it will allow you to cultivate multiple plants in smaller spaces, allowing for bigger yields and higher diversity. Mentioned below are a couple of strains that come highly recommended for hydroponic grows.
I’m Alive (AlphaFem Seeds)
- Photoperiod
- 300 g/m² indoors
300 - 450 g/plant outdoors - Boundless energy
This Sativa-dominant firecracker lives up to its name – I’m Alive kicks off with citrus and melon sweetness, then blasts you into a euphoric, creative zone with 27% THC. Short and bushy at just 100 cm (3’3”), it’s deceptively powerful, stacking dense, frosty top buds like a champ. The perfect daytime pick-me-up for unstoppable good vibes.
Auto GG#4 Original Glue F1 (Seedkeepers)
- Autoflowering
- 400 - 600 g/m² indoors
200 - 300 g/plant outdoors - Feel-good flow state
Sticky, punchy, and fast – Auto GG#4 Original Glue F1 is a Sativa-leaning autoflower with up to 28% THC that delivers focus, euphoria, and full-body chill in just 8-9 weeks. Fruity, piney, and spicy, it grows to a tidy 100 cm (3’3”) and yields fat, resin-glazed buds indoors or out. Social, cerebral, and satisfyingly potent.
Wedding Cake Autoflower (EGS)
- Autoflowering
- Smooth wave of chill
- 550 - 600 g/m² indoors
150 - 170 g/plant outdoors
Wedding Cake Autoflower is your low-maintenance ticket to sweet success. This Indica-leaning beauty flowers fast (49-56 days), pumps out up to 600g/m², and packs a 23% THC punch. Just 70 cm (2’4”) tall and mold-resistant, it’s ideal for beginners or laid-back growers. Expect creamy, frosty buds – and zero stress in the process.
Most Efficient Hydroponic Set-Ups
Ebb And Flow
This is perhaps the most popular and simplest hydroponic system out there, the reason being that the grower doesn’t need to put in a lot of work. It’s also extremely productive and low-maintenance, making it an ideal choice for beginners. Also known as the flood and drain system, this system pumps the water/nutrient solution through a reservoir inside the system’s main part where the roots of your plant will be present. The flow will continue filling the system to the point where it gets to a dedicated overflow tube. It will bring the solution back inside the reservoir where you can pump it back into the system once again.
Drip Irrigation
This is a great way to save both nutrients and water. In this system, water and nutrients are delivered from the top of the plant. It works well for both indoor and outdoor growing. The setup uses small droppers that can be placed just above the soil, right next to the roots or stem. These droppers slowly release small, steady drops of solution to keep your plant consistently fed. This method is excellent to ensure that you don’t waste your nutrients and water by overfeeding your plant. It also helps to minimize evaporation losses. Stealth growers in particular will appreciate this setup, as it allows them to grow their plants in smaller spaces. The drip system is quite water-efficient – perfect for growers in California and other similar areas because it keeps water use to a minimum.
Deep Water Culture
DWC is another simple yet effective way to grow marijuana. This method is famous for its use of air rock, which helps to provide oxygen to your plant on a consistent basis. If choosing DWC, growers need to use a large water reservoir to ensure that the plant's roots are completely and consistently submerged in water, hence the name of the method.
Must-Have List Of Tools And Supplies
A hydroponic setup requires a certain number of supplies and tools. Here are some of the tools you’ll need to ensure an effective grow.
Lights
Lights are important to ensure good results. There are various types of grow lights out there, but for hydroponic marijuana growing setups, it would be advisable to go with a 600W, 400W or 250W light. These options are ideal for first-time growers, especially if they are growing in DWC. Choose high-pressure sodium lamps (HPS) for best results from hydroponic growing.
- 250W lights are ideal for 1 to 4 plants. The average yield they provide is generally between 113 and 250g (4 to 9 oz).
- 400W lights are perfect for 2 to 6 plants, and the average yield you’ll get by using these will be between 200 and 400g (7 to 14 oz).
- 600W lights provide between 285 to 600g (10 to 21 oz) and are perfect for 2 to 8 plants.
Provide 18 to 24 hours of light to your plant during the vegetative stage. While in the flowering stage, it would be best to keep your plants in darkness for 12 hours and under light for the remaining 12.
Grow Environment
Although a lot of growers tend to build their own growing environment from scratch, a grow tent proves to be equally handy. First-time growers particularly benefit from it, as it’s less time-consuming to start off and generally requires low maintenance.
Nutrients
You cannot neglect the importance of high-quality nutrients for hydroponic marijuana growing. Hydroguard, GH flora and Calimagic are some of the best nutritional supplements for hydroponics out there.
EC Meter And pH Meter
These meters are important to determine the correct amount of nutritional solution needed for every feeding. The EC meter tells you the correct nutrient concentration, while the pH meter helps you to determine your plant’s ability to properly transport carbohydrates and nutrients. Commercial solutions often require users to check nutrient solution concentration regularly, so don’t forget to purchase an EC and pH meter before starting your hydroponic grow.
Reservoir Tank
A reservoir tank is where the hydroponic system holds all of the nutrients. The tank usually also contains a water pump and an air stone. The size of the tank is determined by the type of hydroponic setup and available grow room.
Simple And Effective Setup Guide
The first thing you have to consider regarding your hydroponic grow setup is the place you want to grow your marijuana plant. Therefore, be very careful when picking a spot. Sure, a closet or an attic would be fine, but a room that’s strictly dedicated to growth would be the best option. Make sure your growing spot has good airflow, easy water access, an adequate temperature of around 20°C (60°F), and power access to run the lights. Also be sure to check that the room is properly concealed to avoid pets and pests from entering.
Every growing area needs fresh air that comes from outdoors or other rooms. If not, you’ll need to provide supplemental CO2 for replacing the CO2 consumed by plants when the lights are on. If you have a larger setup, make sure the water supply you have is close enough and provides the amount of water your plant will require. Remember to keep an exhaust fan in your growing spot. Air conditioners and air-cooled lighting are also good options.
You will also need to decide on the type of setup you wish to grow your plant in. There are various types of setups available, all with their own unique features. You need to consider the number of plants you plan to grow along with the size of the growing containers if you want to determine the right setup for your needs. Deep water culture, drip irrigation, and ebb and flow are universally-recognized hydroponic setups and some of the easiest ones to maintain.
Feed Your Plant These Nutrients
Potassium, phosphorus and nitrogen are among the most important marijuana hydroponic nutrients. You should also be mindful about secondary nutrients, some of which are zinc, sulfur, magnesium, iron, copper, calcium and boron. You can get hydroponic nutrient supplements from various companies, whose nutrients are normally particularly designed for different growth stages. Nitrogen-based solutions are for vegetative stages; phosphorus-rich nutrients are vital for the flowering period.
Expert growers often use the parts per million measurements to check how nutrient-dense their solution is. Remember, the lower the parts per millions, the lesser nutrients your solution contains. Mentioned below are ideal densities according to a plant’s age.
- Early sprouts/seedlings: 100-250 parts per million
- Early state of vegetation: 300-400 parts per million
- Full vegetative stage: 450-700 parts per million
- Early blooming stage: 750-450 parts per million
- Ripening/fully mature blooming stage: 1000-1600 parts per million
Be Mindful Of This For Hydro Garden Maintenance
Checking pH and EC levels is vital to maintaining your hydro garden. Usually, if your solution's pH value is around 5.5-6.5, your plant absorbs nutrients efficiently. However, the plant could face various issues if its pH levels change too much. You can also train hydro cannabis, as training methods are not restricted only to soil growing.
Similarly, if your system’s EC levels increase significantly, it means that the plants are absorbing extra water instead of nutrients. However, if EC levels decrease, it likely means that the plants need more nutrients. You must keep a watchful eye on these measurements, as the productivity and health of your plant depend on it. Small shifts are okay, but massive fluctuations can be troublesome. Also keep a watchful eye over your system’s lights, making sure that there isn’t too much or too little of it. If your plants’ upper leaves start drying up, browning and in general appear burned, your lights are too intense for the plant and you need to move them further away.
Finally, you can harvest your cannabis plant once it’s fully matured. For higher THC levels, harvest when about 60-70% of the pistils (hairs) have darkened. For more relaxing, calming effects, wait until 80-90% of the pistils have turned dark.
***
Hydroponic growing can be a great experience if you take the right steps. Fortunately for you, the steps mentioned in this article will help you achieve the right yield for your marijuana plant. Be mindful of your setup, the nutrients you provide and the type of strain you choose for hydroponic marijuana growing – these factors will all play a vital role in achieving the results you hope for.
Herbies Head Shop expressly refuses to support the use, production, or supply of illegal substances. For more details read our Legal Disclaimer.
- Shared on Twitter
![icon]()
- Shared on Facebook
![icon]()
Thank you for leaving a comment for us!
Your feedback will be posted shortly after our moderator checks it.
Please note that we don’t publish reviews that: