I have grown Blue Mystic from Nirvana many times & I have found it to be a very good yielder & amazing smoke - I grow using Hydroponics (DWC) and on average get approximtely 6-7 oz per plant (dry weight). I only grow one plant at a time because of space issues, I use a grow tent & 125w CFL to veg, 400w HPS to flower, using Ferro Nutrients for the veg & flowering cycles...Hope you have a good grow what ever you decide to buy!