Not 3 separate grows, one perpetual grow containing 3 flowering systems. What I stated is accurate, I harvest 14 ozs every 3 weeks. It is a perpetual grow with 3 flowering systems under 2 1000w HPS lamps (plus a veg tent in the same room for moms, clones, and vegging plants), so it takes some time to get there -
1. I take clones from the moms and put them in the cloner
2. 3 weeks later the clones go in the veg unit
3. 3 weeks later those vegged plants go into one of the flowering systems.
Each system is flowered for 9 weeks, and each system is 3 weeks apart from each other. 9 weeks divided by 3 systems is 3 weeks. Thus, I harvest a 9 week old system every 3 weeks for 14 ozs of weed. Rinse and repeat. I hope this makes sense to you. It is similar to any perpetual grow.