Super soils are a great option as they eliminate the need for feeding your plants liquid nutrients. The only liquid they will need is water, beyond that you won’t have to do very much to achieve respectable results. An online search will give you loads of different recipes, so feel free to dig around and find one that suits you best. Having said that, your super soil base should be comprised of the following: coco coir, perlite, vermiculite, and compost and/or worm marijuana medical calgary castings. Some of the best soil amendments are easy to obtain and make a big difference on you soil. On average, home-growers use a three-gallon pot for each cannabis plant. In this case, most cannabis cultivators recommend about 1.5 cubic feet of soil for three cannabis plants in these containers.