Could it be that theyʻre Root-Bound ?? my other big Girl Purple Kush is now showing similar coloring on some of its large Secondary Fan leaves. Theyʻre in 3 Gallon pots..... and the 2 biggies are at the least 2 1/2-3 ft tall and equally as wide.

Iʻm staring to get a bit apprehensive and pissed off!!!