Pre-harvest flush when leaves are already VERY yellow?

pamaris

pamaris

Well-Known Member
Hi! My question is- should you flush 2 weeks prior to harvest even if over 50% of the leaves are completely yellow? I dealt with a high pH and some deficiencies on this grow- I am afraid the plants won't make it without food for 2 weeks. Although, maybe this is a normal level of post-flowering yellowing?

Let's put it this way- my leaves are about 60% yellow at about 8 weeks flowering (I'm going to 10 weeks). The buds do look nice but if the plants don't receive food for the next 2 weeks I think the leaves will all fall off. So should I give them 1 good feed and then only water, or should I try to correct the deficiency at this point? I am using organics btw, if that is relevant.

Thanks
 
i wouldnt worrie about yellowing leaves at this stage dude its autumn for ur plants as they die off for winter. Its what u want to happen. Id jus give em water till u finish now mate.
 
mr west said:
i wouldnt worrie about yellowing leaves at this stage dude its autumn for ur plants as they die off for winter. Its what u want to happen. Id jus give em water till u finish now mate.
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Hmmm alright thanks; I won't worry about it. So is 50-60% yellow leaves the normal amount of yellowing for some strains? I have read that yellow leaves are normal at the end, but this seems excessive (though like I said, the buds look great). Just trying to figure if I really have had a deficiency or if all this was supposed to happen. They started yellowing at week 6.
 
at this stage of the grow most my leaves have gone yellow and fallen off lol if the flowers look good thats the only thing ya gonna smoke. Ordinarily my leaves start going yellow in the 3rd or 4th week in 12/12.
 
mr west said:
at this stage of the grow most my leaves have gone yellow and fallen off lol if the flowers look good thats the only thing ya gonna smoke. Ordinarily my leaves start going yellow in the 3rd or 4th week in 12/12.
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Thanks so much, this clears up a lot of confusion for me. I guess I've been doing everything fine!
 
Yellowing leaves are part of the natural maturation of cannabis it's using all the stored nitrogen in the leaves as a last ditch effort to get pollinated
 
robsmoker said:
Yellowing leaves are part of the natural maturation of cannabis it's using all the stored nitrogen in the leaves as a last ditch effort to get pollinated
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Do you have a credible link to support this theory?...mine never turn yellow.
 
dam sunbiz quit throwing that cat in the tub...poor kitty. hahaha....old thread eh? my canopy stays green but under that towards the end of flower mine get yellow
 
james2500 said:
dam sunbiz quit throwing that cat in the tub...poor kitty. hahaha....old thread eh? my canopy stays green but under that towards the end of flower mine get yellow
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Should have edited my last posting, my C99 turns yellow no matter how much N they are fed.

Yep, old thread...and even older debate. My in-grounds outdoors all turn yellow, but that of course is light related.

Peace!
 
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