When should I start flowering??

[Breezybrii21]

Had these clones since may 15th .. topped them & they r growing pretty healthy and fast.. left is bubba kush tha ryghtt is banana 🍌 Og

 

[9fingerleafs]

its going to depend on how much space you have, but as a thumb rule you want to flower them when theyre about half the maximum height you could fit in your grow, check low stress training, you need to spread the plant to the sides and not only up