Step 1. Designate a Special Space for Growing

A suitable space for growing marijuana indoors doesn’t have to be a special “grow” room. It can be a cabinet in your garage, a spare room, a closet, or even a corner in your basement.

Tip for beginners:

  • Start small because it’ll be easier to grow and your mistakes as a beginner won’t be as costly
  • Make sure the space is sanitized
  • Choose a cool, dry area because it allows better temperature and humidity control.

Step 2. Choose Proper Grow Lights

You’re growing your marijuana plants indoors, but you can’t leave them sitting in your window for the whole neighborhood to see. However, you still need to provide quality lighting because it’s critical for the plants.

The list of the most common cannabis grow lights includes:

  • HID (high intensity discharge) lights (cost about $80)
  • Fluorescent lights (good options can be found in $20 – $70 price range)
  • LED lights (superb lighting units can be bought between $50 and $100)
  • Induction lights (cost about $40).

All of these options work well for growing marijuana. The best advice that anyone who has ever grown marijuana can give you is to choose the best setup you can afford because a quality lighting is a strong predictor of a good harvest.

Step 3. Keep Air Fresh

To ensure that your cannabis plants get the fresh air they need, you have to employ an exhaust fan and an activated carbon filter. For example, the fan placed at the top of the room will create a constant light breeze in the room, which, in turn, will create a less hospitable environment for pests and mold and strengthen the stems of your plants. The filter will remove the typical strong cannabis smell so your neighbors won’t have to smell it.

Step 4. Automate Your Equipment

Since you’re probably not spending a lot of time in the grow space, automating lighting and temperature equipment is a good idea. First, the plants will need between 16 and 24 hours of light while in the vegetative growth and then 12 hours in the blossoming period. To automate this task as well as air conditioning, you can use a timer, but experts recommend buying a thermostat to avoid unnecessary issues.

Step 5. Put Plants into Pots

When the plants enter the germination stage, you’re getting really close to the flowering. But before you start harvesting and learning how to make hash and other marijuana products, you need to put them into pots directly below the lighting equipment and keep them there for about 3 – 4 weeks (depends on the strain).

Step 6. Start Flowering

That’s when you switch to 12/12 lighting cycle. At this point, plant growth will slow down and the buds will begin smelling very strongly. When the trichomes – icy, sticky things covering the buds – change their color, it’s a strong indicator that they’re ready to harvest.

Things to Remember


If you’re a beginner, organic pre-fertilized soil that doesn’t need additional nutrients should do fine.


Getting good marijuana seeds shouldn’t a problem because they can be easily bought online or in your local dispensary. Since only female plants produce buds, plant at least 5 seeds to get at least several females.


There’s no universal formula for watering, but many growers recommend to water cannabis plants until the topsoil feels dry about an inch.

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