When should yellowing of leaves begin

[moses224]

I submitted in growers but no response. My question is whats the AVERAGE time before your leaves start to yellow based on 8 week flower?? When should fan leaves begin to yellow from date you start flowering assuming you flower at right temp, ph, nutrient regiment? i am on day nineteen and they are lush green beautiful. this is the largest iv done and next will be even larger so i want to dial it as far as my regiment in the passed i always got a little yellow and slowly progressed to allot as plant finished so based on a 8 week flower when should I "allow" yellowing of the leaves?

couple pics current grow no yellow

 

[bongoie]

hi moses , yellowing on lower leaf has happened to me in veg , concluding a lack of feed , this has carried on into flower . howerer it dont worry me as the top / inportant part is still lush an green @ week 5 12/12 . hoping this helps bongo

 

[moses224]

So accept yellow lower branches at beginning of flower and at top of plant at 5.5 weeks. anyone else got any input

 

[whodi]

SOME yellowing on lower-mid branches are normal in flowering.. it depends how much nitrogen they are getting as to if it's a lot of yellowing or just a few leaves. I don't give my plants any nitrogen after the 4th week of flower on a 60 day strain.

You're plants look good to me.

What nutrients are you using?

 

[moses224]

Im using fox farm big bloom, beastie bloomz and a few other. i have never really paid attention always had good yields but since im doing more plants i wanted to dial it down and try to prevent any issues so if people are getting 4 weeks (normally) thats what ill shoot for but O think that I usually see around week three and the it slowly progress as long as i dont see signs of ph issues i usually roll with it just thought it would be good to get a consensus.