When to flip

[Lomein]

This is my first time growing photos and I'm not sure when to flip to flower. They are london pound cake x wedding tree and a gsc fast right backside. They are in 50/50 ocean forest/happy frog in 3 gallon pots. They are 43 days old.

 

[Hashsloth]

All depends on the space you have and if you want to harvest sooner than later. Technically you could flip them now as they are big enough,they will stretch and get bigger too

 

[TexasGrows]

I go with the twice as tall after stretch model......

They typically grow double in height after going into flower. Based on total height you have to work with, use that ratio to say when to flip.