Whats Wrong With My Plants???

My plants leaves are turning yellow!!! Plus my granddady plant hasnt budded that much, Looks very stemmy!!! The weather lately has been in the 70s and 50s low. I grow outdoors with Master nursery gardeners Gold organic soil and I water every other watering with Fox Farms Tiger Bloom and Big Bloom. I used a 20.20.20 orchard plant for for veg. My question is do these plants look like they have nute burn? And why does my grandday strain so stemmy with little pupils?? Ive had these plants for about 4 1/2 months. Only 4 of the six are grandady, The other 2 are Bubble berry Kush. Thanks for the help and hopefully I can have some good smoke by august. (The First 2 pics are of the Kush, The last ones are the granddady)

ur plants look good. as for the budding if ur not puting in 12hrs of darkness then wont bud till fall

dude ur plants look fine maybe ur just colorblind haha

I need to take some better pics cause the kush looks a bit tellow to me and the grandaddy purple has a few yellow leaves. But thanks for the replies. Hopefully I will yield a fair amount from my 6 babies.(Lol)

put a small fan in there it looks to me like they need some air movement,
if your plants are in flower and your giveing them longer lite times your plants could be going back to veg