This is a common question which comes up regularly. One may be planning their garden and they want an estimation of how much they’ll get from a plant. Unfortunately there is no definite answer. Take this plant which was planted outdoors in what appears to be the perfect climate for marijuana to grow. A plant like this could easily make over 300 grams dried. However, if you’re growing under a CFL system in your PC case under optimum conditions, you could expect to make only around 20 grams a plant. It varies entirely on your setup, how much experience you have, what type of nutrients you use, how much air flow you have, the list goes on and on. A small closet grow could bring up to 300 grams under the best circumstances whereas the possibilities for an entire grow room are virtually endless.