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So you’ve decided to make growing cannabis your new hobby? Be warned: the art of growing weed can be more addictive than merely smoking marijuana! Still, with a little fore-thought and the Growers Guide to Cannabis, you can make the indoor grow room a beautiful area of marijuana buds.
Why can’t I just grow cannabis in a corner of my bedroom?
Well you could, ..but it wouldn’t be a very good idea. The idea of building an indoor grow room is to create a controlled environment in which to give your marijuana plants the best conditions in which to grow, and flower. (see The Beginners Guide to Cannabis for an overview of this). In order to do this you need to provide all the elements listed here within a defined space. Before you set up, think about all of the following:[tabgroup_vertical title=”Growing cannabis indoors”]
Ventilation and air flow.
Your plants need good ventilation to breathe, so you have to consider how to make your extractor work most efficiently. Making the grow room as air tight as possible helps this. The airflow intake should be on a low level at one side, the air out take on the opposite side up high (because heat rises). If you can avoid your air intake coming from outside as cold air will shock young plants.
You’re going to be working with electricity and water, so make sure the two don’t mix! Be organised: keep wires off the floor using neat cable tacks. Label the plugs. Use good quality timers with the correct ampage for the light system being used. No matter whether growing in soil or hydroponics, make sure any excess water drains safely. In fact if your indoor grow room is above ground floor its a good idea to “carpet” the entire area with builder’s plastic up to just above skirting board level in case you have leaks.
Creating the right environment.
Temperature needs to be controlled using either heating (possibly with the case of LEDs) or more likely heat extraction. Humidity should also be monitored – and a rH gauge is useful for this. During seedling stage humidity needs to be high (which is why many gardeners use a propagator) but even in vegetative growth, a relative humidity of 65 – 80% will increase the growth rate.
An organised room is also easier to keep clean, and a clean room is much less likely to fall foul of marijuana pests and diseases. If possible remove carpets as they keep dust and mites, and retain any spilt liquids. Just outside the room you need shelving and storage for nutrients, pH pens, calibrating fluid etc. Pen and paper is also handy for observational notes. If the grow area is more than 80cm wide you will probably need two access points to reach all the plants.
- The area needs to be light tight. This is important for two reasons.
- You don’t want light escaping from the room. For one thing this is a waste of light, but also it makes the indoor grow room visible (and thus vulnerable)
- You don’t want light entering the grow room. Cannabis plants are photoperiod and therefore will be effected by changes in the light cycle.
The inside area needs to reflect light. You’re paying for this light in size of light you buy and the electricity it uses so you need to maximise the light efficiency. Reflected light can increase the amount of light the plants receive by around a third. Artificial light will reduce with distance, so it is important to contain and direct the light within an appropriately sized area for the marijuana light.
What to read next:
- Setting up an indoor grow room
- What’s the best grow tent?
- Ventilation and why good air flow is essential for the cannabis grow
- Growing with Coco-Perlite
- T5 Review: the Quantum Bad Boy
- LED grow lights & cannabis grows
- pH your nutrient solution and get a better grow
- What you need to buy to grow 2 pounds of weed