so, i'm mid way through week 4 of flowering and my leaves are already showing signs of the N being used up...but surely it's too early for that? Would it be too late to give them a wee N boost to keep them going for a bit? Is it normal for plants to be using their N this early? Advice please guys
its not to early for that, just means they were a little under feed while in veg and they get really hungry during flower cycle