@Ferenc, last time I had that problem was all the same genetics, green poison, the leaf turn with spot like that, when those spot reach the base of the young leaf located I to buds makes it mold I saved almost everything take them out 2 weeks earlier,
@balooNL, i had it once too but i dont use any nutes...i was thinking mybe cus soil ...sellere told me that (my) special soil is best for weed got some shit inside alredy .... but is gone now :)
but what's the problem you have with the Purple Kush? I did it and it's very weak and needs a lot of attention. now I tried to reposition it to see if I can improve from last time. however, unfortunately, it has 2 different phenotypes, one purple with fast flowering and another slightly purple with late flowering. Let me know why the Purple Kush has given me so many problems. It's not resistant as a genetic. I'll see how it goes this time. good grow brother
@KushAndHaze, hi man, the problem I had was a potassium missing, a good guide helped me to find out the problem, If it was for me I could flush it but thanks to this friend @HageWeed420
he make me see that the potassium was not enough, BTW I think this purple kush is coming really strong even without paying so much attention. I had more expectations from blackjack, Cheers