Alright, so I have this little table like box that has my salvia plant any window level so it gets light. I want to turn it into a grow box since it has a big hollow body, however it's not very tall 20'' High x 24'' Wide x 18 1/2'' in Depth. So I was thinking about trying to grow Autoflowering plants since I haven't grown one yet, however can I yield a good amount by having a short but wide plant? I saw this picture and this would make me really happy if I can get something this size. So I'm asking if I can have a 10'' plant size total from the soil up with a good yield (min. 5 grams would make me happy). If I can do this, how do I keep the plant short to fall within the 10 inches?
Examples:
Examples: