4 weeks in flower, 4 month old plants yellowing

Unclepauly

Active Member
1st pic is yellow with brown edges and the bottom 6 nodes of fan leaves have fell off(started falling right before flower). 2nd pic is of the clones, same problems as the big ones. 3 pic is one of the buds. 4th pic is yellowing at the middle and just started last week. 5th is yellowing at the bottom and started 2 weeks before flower but strangely they have not fallen off.

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My question is what the hell has been going on? Soil is Hyponex with very little MG perlite mixed in. Nutes are FF big bloom and organicare nitrogen 6-0-0 and grandmas molasses. Big bloom feeding 1 Tbsp every other water no more nitrogen and mollases on alternate watering from bloom. Think it could be ph? I have no idea they all are yellowing in different areas of the plants. The one in the last pic is lime green on the top too. Big ones in 5 gallon buckets and clones in 2 liters
 

SmokyRoach

Well-Known Member
From what I can see in the pictures, all of the yellowing seems to appear on the larger fan leafs.

Big bloom feeding 1 Tbsp every other water no more nitrogen and mollases on alternate watering from bloom.
IMO you should give them a feeding of Nitrogen, your plants look like they are eating the fan leafs to keep the bud going.
Good luck.
 

Unclepauly

Active Member
OK I'll give them a shot o' the ole nitro... btw, what happened to the pics? The new forum doesn't allow pics or something?
 

Unclepauly

Active Member
OK I transplanted the clones out of the hyponex soil and into some FFOF and my god they look completely different now.. so strong and healthy the leaves now have a oily sheen to them as before they looked like green paper. Unfortunately I only gave nitrogen to two out of the four flowering plants. Those two are semi OK and the other two have almost dropped all fan leaves, bud areas are still green though and only two weeks to go
 

drkstr67

Active Member
OK I transplanted the clones out of the hyponex soil and into some FFOF and my god they look completely different now.. so strong and healthy the leaves now have a oily sheen to them as before they looked like green paper. Unfortunately I only gave nitrogen to two out of the four flowering plants. Those two are semi OK and the other two have almost dropped all fan leaves, bud areas are still green though and only two weeks to go
So giving a feed on nitrogen took away the yellowing bud?
 

metroplex

Active Member
this is all normal, as the buds development they suck up all the nitrogen....often guys will feed their plants nitrogen 2 weeks into flowering as it does alot of streching then....all normal dont worry.... by the time my buds are ready the entire plants is yellow and lost most its leaves .
 

drkstr67

Active Member
My problem is yellowing tops and on some right down to the buds, I have been feeding with GH 1-2-3 + 1ml gal flouralicious plus for the last two weeks and am in week four of flower. The damage seems to be occurring under the light and when moved away begins to green up again.
Nutes have been between 1050 ppm and 1400 ppm, PH 5.6 - 5.9. Fresh water add back between nute top ups. I'm in 4" rockwool cubes with 3 floods a night.


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metroplex

Active Member
your ph is low, try get it to the 6.3 -6.7 range.... also your lights may be a little too low then, but from the pic above it looks like nitrogen defficiency which is completely normal at that stage....by the end of your grow your entire plant except the buds of course should be yellow and you will notice more and more leaves falling off as all the nitrogen has been sucked out of them rendering them useless.

molasses is good stuff though, i use it when flushing my plants love it as well as on every other watering
 
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