how many weeks of Veg Should I give these Green Cr...

I think the question "which week to switch to flower" is the wrong question to ask, as there is no definitive answer. I'd suggest that the most important issue when determining when to make the switch is (as other have suggested) the space you have to work with. Never plan for using all 8 feet of your grow height, and always account for roughly %50 more growth once you switch to flower. So, for example, if you want your final plant height to be roughly 6 feet, then switch to flower at 4 feet. Again, time it's self isn't a good determination of when to go into flower, but rather your particular conditions and goals. Also, it is good practice to give your plants 24-36 hours of dark when you do flip to flower, as it helps kick-start the process.

Hi SunSetSarah, i wont put anything on the layer of the soil... Soil got the breathe, you oly risk mean moldering.And the reflexoins of alufoil are very weired light for the plant. No need to use such stuff. But back to your Question. It belongs to waht you want. I switch to flower if iam satisfied with the shape of the plant. And i would say a regular training takes up to week 10. I know comercial grower who do the "3 Branches technic" they let 3 Branches for Flowers and cut the rest, and they send the plant after 1 week seedling and 3 weeks vegetation to flower, and harvest around 7-8 weeks later ( depending in strain. So thats the nice thing in photoperiod plants, you can train her the way you like and if you are ok with it, send them to flower.

Only 8 feet..... like all of us it’s a norm of construction... except if you leave in a castle... Around 6 weeks with just some few toppings, or you can push to 9 weeks if you smash them under a trellis to lower them at half size

Hey there so if you've only got 8 feet to work with check out the space the equipment takes up, pot, lights and fans. Then plan on the plant at least doubling and sometimes tripling in height after the flip. I think you don't want to veg them much less than a minimum of 6 weeks old. I'd say top them or train them with lst possibly for a flatter canopy and let em age at least another 3-4+ weeks and then do the flip. Good luck with the grow, the plants are looking healthy and strong already. ✌️