As long as the plant is sexually mature you can. You can tell when the branching of the nodes start to alternate vs branches growing directly across from each other.So I can flip it any time? Just like that
A three foot wide plant unless you tie it out will stay close to 3 ft wide, as all growth will be towards top. Some plants will stretch alot but that depends on light intensity and spectrum. You can train and veg a long time and grow a monster. I suggest you try to train outwards and keep as short as possible by tying down. Flip when she is healthy and growing well for best results. Dont flower sick plants.I've been growing indoor and I've been vegging for a while when do I know when it's ready to flip to flower