You can get at least 6-8 ozs per plant in hydro with SuperSilverHaze, SnowCap and PurePowerPlant to name a few! Most Kush strains will give you 1/2 that much in hydro if you keep them stress free. Outdoors planted in soil you get a lot more. Kush strains will give you about a pound or so and the other three will give you no less then 2-3 pounds. If you decide to grow Kush outdoors its best to start indoors and plant late june. If you plant mar-apr like most strains Kush flowers early and then re-veg starts in june before re-flowering again and yield will suffer greatly!