****Sativa...Flowering behaviour n tips wanted******

Hi smokers of the earth.....on friend of me is running some ch9 seeds some jack and flower.....it most sativa strains....and they run fast....

what about vegging n flower....???
will double her size when you turn it to 12/12????
someone with experience to that strains????

also the lower big leafes are turning silver not yellow or withe is something like silver...(.i dont measure ph and stuff like this.....)what they want?
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is it wise to cut all the big leafes when you force flower????
thx ....anything will help .....
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I wish we wake up one morning learn the news of legalisation and take our pots
outside...to the sun.....
Happy wating time....
Patience is something that you cultivate it also.......