google Low stress training and Super cropping. That should help you out.



There is also a product out there called Bushmaster that will help you out alot. It contains a chemical that inhibits vertical growth and forces plants to focus energy on lateral bud growth. When used at the right time it can take about a week of stretch off, making your plant shorter and denser by harvest time. ITS SOME SERIOUS SHIT, and shouldnt be taken lightly. I feed with half strength right when i switch to 12/12 and i might give them another dosage at 2 weeks of flower for really stretchy sativas.


You could switch over to MH or T5's in order to promote shorter and stockier growth, but cannabis plants usually double to triple in size during flowering regardless of light spectrum.