I switch to flowering nutes around week 3 or 4. Here are my auto ak-47 they will be at week 5 come Friday. The ak's are one of the larger autos they can easily grow to 2'. Some auto strains like the diesel ryder are a lot smaller less then 1'. Sorry my pictures are crappy I always end up with a crowded space where I can barely get in to water let alone get pictures. They are in 10" pots and were started in them with mg soil. They are outside in a GH with cfls