What on earth makes you think flushing will make the leaves change color?
The leaves will eventually change color as they run out of nutes, but flushing will not by itself make the leaves change.
I mean at the end off flowering. I flushed at the end of my last grow but they were still very green when i pulled them.
I just wanna kno how long to flush for roughly to get rid of nutes from soil so the start to lose there green nd start to yellow
Simply stop feeding four weeks out. Address PKCaMg defs only as they occur. That would be what I would do. The soil, being an ion reservoir, will taper the nutes for you. cn