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How To Set Up An Indoor Grow Room For Cannabis

Whether starting with a single grow tent, a stealth grow box, or a full scale commercial marijuana grow room, how you set up your growing space goes a long way in determining your final yields. In this chapter we’ll cover the 6 most important factors for setting up a successful grow room for your cannabis plants.

Growing indoors will provide you the power to influence all necessary inputs for growing big, healthy, cannabis plants with those big, sticky buds you dream of. This includes lights, nutrients, water and humidity, ventilation as well as temperature. Instead of being dependent on weather and soil you can optimize your production for maximum yield.

A Grow Room That Your Plants Will Love

Setting up a growing facility isn’t cheap. Even the basics requirements needed can add up cost-wise. The main advantage is that indoors you are protected from natural challenges and road blocks. So setting up might be more complicated than outdoors but the results and your margins will be a lot greater. Testing things out with a single grow box might be a good solution to get started because they provide many factors needed for growing growing cannabis on a small scale.

You are probably looking for a strain that grows quickly, is easy to grow, produces much bud and has high potency. But wait… there is more to it!

Always keep in mind that the general idea is to create an environment where your plants will prosper. The better they carry out their photosynthesis, the better your output in regards of quantity and quality, what growers refer to as “yield”. We will now study in great detail what your plants need:

1. Light: Lamps, Reflector and Wall Color

Your plants need light to carry out photosynthesis. However: Find a room that is completely lightproof. This will allow you to carefully choose the hours of light and darkness. In the vegetative phase your plants will need 18 hours of light, 6 hours of darkness. In the flowering phase 12 hours of light and 12 hours of darkness.

You can choose LED or HPS/MH lighting for your indoor production. A 400-Watt for vegetative phase and a 600-Watt HPS lamp for flowering phase for every square meter will be a great start. If you can make the investment use LED lamps because they will last forever, and the technology is finally catching up to the HID (HPS and MH) lamps most professional growers have used for years. See our full info on lights here.

To make the best out of your lighting use reflective walls. White walls work best for reflecting light, whilst dark or black walls will absorb the light.

Use a time switch to make things easy for you and create the best lighting experience for your plants.

2. Ventilation and Air Circulation

Make sure to find a room or grow tent that is airtight. The stench of marijuana could easily reach and bother your surroundings. Whilst air circulation and fresh air is very important, make sure that all your out-going air will pass through a carbon filter. An air extractor will remove the heat for the lamps to keep the temperature stable as well as remove the odour of the plants.

Your plants will need fresh air as well. During photosynthesis the plants take CO2 (carbon dioxide) and transform it into oxygen and sugars. The closed environment of a grow box will need a hole or entry point to supply fresh air and CO2 for your plants.

Use a fan for consistent air circulation. This way temperature and CO2 will spread evenly throughout the room.

3. Watering System and Humidity in a Grow Tent

Water running from your pots to the floor is inevitable. So best to keep your house and production safe with a waterproof floor.

Find our article on the perfect amount of water for your plants.

Humidity describes the amount of water in the air. You will need just the right amount of moisture in the air that will push the growth of your plants will at the same time not too much humidity because it will cause fungus and mold.

4. Temperature

As said in the part about air circulation, an airflow system and a fan will help you to prevent overheating of your plants.

Temperature is crucial for the photosynthesis of your plants and more over for the tasting for your results. Make sure to align the temperature to the hours of light and darkness. You gonna want a higher temperature throughout lighting time than during darkness.

Best temperature will be 77. Don’t go below 64 and don’t go higher than 86. The lamps should provide enough heat during the day. However consider that you might need extra heating during the night.

5. Nutrient Delivery

Nutrients are vital for the health of your plants. Make sure to measure them on a regular basis and change your actions accordingly. It will be important to provide nitrogen, potassium, and phosphorus for your plants.

There are different nutrients blends that you can use. It will also depend on the growing cycle of your plants, and you’ll need to be careful not to go overboard and burn your plants with too much. Nitrogen toxicity is a common downfall of too many grows.

6. Security

Make sure to seal your windows and use a carbon filter against the marijuana scent. Think about using extra locks or even cameras especially when growing in a warehouse. Don’t put your crop at risk.

Think about different scenarios and how you could prevent them. Better act now than in crises.

Creating the right lighting, air flow, humidity and temperature will change your production output massively. A grow room will provide a unique learning and business experience for you.

The Cannabis Grow Room Setup Checklist

Below is a quick checklist for setting up your grow room. Each of these steps has more to them than what we can include here, but not to worry, we’ll go into each in detail in the coming chapters. But for now, this is a good general checklist to follow:

  • 1. Create a blueprint. Whether you choose a basement in a residential area or a warehouse it is best to start with creating a blueprint for growing indoors. How many square meters you have will largely determine how many plants you can put.
  • 2. Prep the space. Make sure to remove all things not needed like carpets, decoration and furniture, and that you have electricity and plumbing accessible in the right proximity to where you plan to place your pots and lights.
  • 3. Set up the light and water systems. Hang your light fixtures, run the necessary wiring, plug them in and test each one. Connect and test the water system.
  • 4. Prep the pots. Lay out your pots, soil/growing medium and seeds/clones in the appropriate quantity and arrangement according to your blueprint. Make sure everything is going to line up as expected and you have the right quantities of everything you need.
  • 5. Start planting. More on this to come in Chapter 3!

As we shared before, a grow tent can be a quick and easy introduction to growing hydroponics. These steps can be scaled up or down to any size, so often it’s best to work through the kinks and see the process through with a single plant or handful of plants before scaling up.

Updated: December 17, 2019

Whether starting with a single grow tent, a stealth grow box, or a full scale commercial marijuana grow room, how you set up your growing space goes a long way in determining your final yields. In this chapter we'll cover the 6 most important factors for setting up a successful grow room for your cannabis plants. Grow

Indoor Grow Room Setup

Indoor Grow Room Setup

Whether you’re a brand new cannabis grower or a master budsman, it’s possible that you have not yet considered setting up a grow room in your own home. Why not? What was once considered a complicated and costly investment has become quite simple thanks to modern technology and our helpful guide!

Planning Your Grow Room Setup

The most critical step to any successful indoor grow room is planning. A few extra moments spent planning can yield better results and save you money in the long run. Make sure to sketch out the general floor plan of the room you have chosen. Remember that in general, any size room will do, provided it can be heated and cooled. Things may be easiest if you have an exterior wall or door available for venting purposes. Sketch out how and where you plan to hang your lights and place your pots or beds. We suggest hanging lights from adjustable chains so that you can ensure they always remain an optimum distance from your plant.

Insulating the Grow Room

It is critical to insulate your grow room so that the temperature remains constant. Insulation also helps with humidity and cooling concerns. Roll insulation is the most commonly chosen material to use for insulation. We recommend that you paint the walls and ceiling white or use white plastic to help protect the walls and floor while reflecting light.

Controlling Your Room’s Climate

Now is also a good time to decide how you plan to handle ventilation and humidity control. In a small home setup, you can opt for a simple solution: install an opening near the floor on one side of the room, with a bent PVC pipe leading outside to allow in the fresh air. The bend in the pipe will prevent light from entering but will make sure that you and your plants have a fresh supply of oxygen at all times. In order to filter the heavily scented air that will be leaving the room, attach a carbon-filtration system to an external vent leading outside, closer to the ceiling (because of warm air rises). An alternative to this – which can work if your room does not have an exterior wall – is to modify a door to serve the same purpose.

Fans should also be placed around the grow room to assist with humidity control. Humidifiers and other equipment that automatically monitor the temperature, humidity levels, and other conditions in your grow room are available for purchase if you decide that you would like to make that investment – some even allow for you to control them from your mobile device! But know that these tools are not required in order to get started, or to grow cannabis at home, successfully.

Potting Your Plants

We recommend using 30-gallon or 45-gallon fabric pots for the actual planting of your cannabis seeds, placed upon a grate-system for easy drainage when flushing or watering. Fabric pots will obviously leak directly onto whatever surface they are placed on, so building a simple grate-topped table with a drainage system underneath, will help tremendously with cleanup and management of humidity in your grow room.

Another option is to line your floor with plastic and to place saucers underneath each plant when watering. If using this method, just remember to always remove and clean the saucers afterward, otherwise, they can become a thriving environment for mold growth.

Whether you're a brand new cannabis grower, or a master budsman setting up a grow room in your own home is simple with this guide! ]]>