Maybe you should think about more than one show then in your greenhouse!!!! We have a really large green house (24'x60') and we do 2-3 showns during the summer months. We plant is in early/mid (dependent upon the period of sunlight available) april with plants that are 18" tall and then we let mother nature do it's job. For the next 2 weeks we do nothing and let these monkey do their thing!!!! Then we take a big ass black plastic tarp and cover the greenhouse to just allow 12 hours of sunlight (we use panda type plastic with the white side up and the black side down, then we eliminate the heat -build up issue). It's a really large job, that requires alot of attention, but by the first week of July we have our first crop. We do this again and again, it's a huge job, but we have found that we get 70% more than we do in most outdoor shows where we have only one crop......

If you consider that we have 160 plants in the greenhouse it becomes interesting!!!

Something to think about....