Here is one simple example of a true “grow in closet”. In this case, one partial side of a master bedroom’s walk-in clothes closet has been converted for use as the grow space (click on the image for a larger version).
The beauty of this particular approach is in its basic simplicity. As you can see, very few modifications had to be made to the space to make it grow-ready. The existing clothes rod (in this case, about 3′ long) has been put to use supporting the relatively heavy high pressure sodium (HPS) grow lamp and ballast. A foot’s length of chain wrapped around the clothes rod and secured to the lamp’s housing with two S-hooks at both ends is an easy and effective way to hang your lighting fixture.
The white shelf directly below the light was also originally installed in the closet. It had a second clothes rod beneath it to hang another rack of clothes on but that rod has been removed. Several pairs of wooden cleats have been screwed into the walls at various heights to accommodate lower shelf settings as the plants continue to grow taller during the vegetative stage.
Power for the grow closet comes from one of the two overhead light fixtures. An extension cord runs from the fixture across the top of the grow space and drops to the floor behind the shelf. A power strip is then plugged into it which supports the lamp’s on-off timer and a small fan used to circulate the air around the plants. There’s no need for additional cooling because, in this case, the closet has a central air conditioning vent in the ceiling which keeps the temperature in it well within the acceptable range for cannabis plants.
The only real downside to this particular approach is that there isn’t any external venting available to transport the cannabis’ natural fragrances outside. Some varieties don’t emit much smell, so if you’re only using your grow space for personal production, it may not be much of an issue.
The grower who put this space together spent no more than $25.00 for the basic hardware (screw-in socket adapter, extension cord, chain, S hooks, power strip, and digital timer). Spend another $7 – $10 on a small fan (doesn’t necessarily have to be an oscillating fan) and this grow in closet is now ready for use. (And don’t use aluminum foil for reflectivity; just buy a few sheets of white poster board & use the shinier sides to brighten your space.)