yellowing

all the lower leaves on every limb yellowing and dying.
outside grow
no nutes just ph water every 3days.
organic soil.
it was fine and getting big but then all the lower leaves started dying.

what do you think it is? and what can make plants turn green again?

thanks in advance?

anybody? im all alone?

use nutes, high on N , something like 7-1-1 is really good 4 vegging, and its good if you ferts comtain also micro nutes-then after couple of days your planst will be green again.

7-1-1 thank you sir...........