yellowing bud leaves. help...

Z

zaybe

Active Member
Good morning RUI ! I have a super lemon haze that started yellowing around the 4th week of flower. Today begins 8 weeks and the yellowing never stopped and the mini leaves in the buds are dying and drying up... I left it alone because I was lazy and assume it was a natural process because I have a blue dream next to it and it was not yellowing at all with the same flower time and nutes. I was wondering if I should let it go for another couple of weeks since it's a sativa but I don't know what happens after all those leaves are gone??? Only 2 or 3 bud sites are that bad. The others are just catching up. Buds seem to still be swelling up tho.

Some info:
600 watt hps

Full fox farm line. Soil & nutes

ph run off is usually low around 6 or maybe lower. I use an aquarium ph drop test. Same result as all of my other plants. I don't get why it's always low.

Never flushed but never overdid it with nutes either. Fed mostly half strength nutes until now.

Any suggestions or ideas? Thanks !!
 

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Bugeye

Bugeye

Well-Known Member
She'll be one smooth smoke! Looks like she needed more nutes than the blue dream. But I'd rather smoke your early fading weed than somebody's overfed weed.
 
Z

zaybe

Active Member
Bugeye said:
She'll be one smooth smoke! Looks like she needed more nutes than the blue dream. But I'd rather smoke your early fading weed than somebody's overfed weed.
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Haha. True. If your in the area I would offer u some.
1st plant to really yellow on me like this. Should I let it go a couple or few more weeks? How would the plant react after all the nitrogen is gone?
 
Bugeye

Bugeye

Well-Known Member
You gotta let her go until the trichomes are milky, or whatever your preference is. I would keep feeding her until final week.
 
Z

zaybe

Active Member
Bugeye said:
You gotta let her go until the trichomes are milky, or whatever your preference is. I would keep feeding her until final week.
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For sure. I go by trichs. Should I still add nitrogen? Fox farm schedule stops nitrogen this late..
 
Bugeye

Bugeye

Well-Known Member
zaybe said:
For sure. I go by trichs. Should I still add nitrogen? Fox farm schedule stops nitrogen this late..
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I think those schedule assume that your plants will have some nitrogen left in the leaves to burn off in late flowering. Since you don't have much left, I would be very tempted to add a trace amount until you think you are in last two weeks. It is always difficult to make any corrections in late flowering so I would not do anything drastic.
 
pinkjackyle

pinkjackyle

Well-Known Member
if run off is at 6.0 its too low , thats hydro territory and causes nute loc out in soil . needs to be between 6.5 and 7.0 so maybe stop adding so much ph down . good luck .
 
Z

zaybe

Active Member
pinkjackyle said:
if run off is at 6.0 its too low , thats hydro territory and causes nute loc out in soil . needs to be between 6.5 and 7.0 so maybe stop adding so much ph down . good luck .
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It is low I agree. I just add only nutes to RO water.. A lockout was my 2nd guess. I don't use pH up or down because I heard it can throw off the pH if I keep using it. Can you please explain how I can raise my pH b4 watering? After I add all my nutes its usually a low pH.. I don't put any buffers inside the ro water..would the nutes be a buffer? Thanks
 
pinkjackyle

pinkjackyle

Well-Known Member
zaybe said:
It is low I agree. I just add only nutes to RO water.. A lockout was my 2nd guess. I don't use pH up or down because I heard it can throw off the pH if I keep using it. Can you please explain how I can raise my pH b4 watering? After I add all my nutes its usually a low pH.. I don't put any buffers inside the ro water..would the nutes be a buffer? Thanks
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tablespoon of lime werked into the top inch of the soil then straight water . a good bit of water till u see a good bit of run off . but not until its dry dont wsnt to over water , then back to feeding like normal good luck
 
pinkjackyle

pinkjackyle

Well-Known Member
test your tap water see what the ph is b4 it goes thru the reverse osmosis system . it might be that the ph might be more in line of the ph you are looking for , although im not a big fan of tap water due to chlorine which can evaperate off and chlorimine "or how ever yo spell it " that will not evap off. b cuzz it kills micro beasties
 
Z

zaybe

Active Member
pinkjackyle said:
tablespoon of lime werked into the top inch of the soil then straight water . a good bit of water till u see a good bit of run off . but not until its dry dont wsnt to over water , then back to feeding like normal good luck
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Alrighty then. Thanks for the input. I know lime takes awhile to work but I need some anyways for future grows! Definitely gonna start using it.
 
pinkjackyle

pinkjackyle

Well-Known Member
lime has a medium up take but should buffer later feedings . u could try some baking soda but i have no idea how much or the lasting effectx it will have or how bad it wil throw off the ph in a way that will not be benifical or vice versa.
 
Z

zaybe

Active Member
pinkjackyle said:
lime has a medium up take but should buffer later feedings . u could try some baking soda but i have no idea how much or the lasting effectx it will have or how bad it wil throw off the ph in a way that will not be benifical or vice versa.
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So its been almost a week and starting week 9 today. I top dressed some lime last week thinking this plant takes 10-11 weeks to finish. (Super Lemon Haze). The mini bud leaves coming out of the bud is yellow and dried for most of the tops I have. What happens when there is no more bud leaves for them? Some bud sites seem crisp to the touch.. Trichs are milky LM
 
Dr. Who

Dr. Who

Well-Known Member
pH, FAH! Not a pH problem!
It's a Sativa and their fussy feeders. That aside, your real problem is to much P to early!
High P bloom foods are tough on even Indica's! I'll bet the farm that the yellowing started out low on the fan/stem leaves and moved up and out the rest of them.

To much P !!!! It will still finish out, but next time don't start a "bloom" nute till week 4 at least on your Haze plants.

For sativa's, I would suggest using plain old Dyna-gro grow....start to finish and that's all you'll need.
 
Z

zaybe

Active Member
Dr. Who said:
pH, FAH! Not a pH problem!
It's a Sativa and their fussy feeders. That aside, your real problem is to much P to early!
High P bloom foods are tough on even Indica's! I'll bet the farm that the yellowing started out low on the fan/stem leaves and moved up and out the rest of them.

To much P !!!! It will still finish out, but next time don't start a "bloom" nute till week 4 at least on your Haze plants.

For sativa's, I would suggest using plain old Dyna-gro grow....start to finish and that's all you'll need.
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I think you might be right sir. The symptoms you describe is on point. Same thing happened to my indica plant starting around week 3 or 4.. I followed FF schedule. I probably over did it with the solubles! I was debating to chop it early.. But I guess I'll let it go another week or two. starting flush this week. Will this affect yield? When does sativa start to fatten up? Thanks Dr. Who!!
 
Dr. Who

Dr. Who

Well-Known Member
Ok, the Super Lemon is a strongly sativa dominate and the Blue dream is a heavy Sativa dominate hybrid and they both tolerate nutrients at differing levels,,,,the problem your having with the lemon is based on this fact.
It should run around 10 weeks to finish.....yours may get close but go short due to the P issue (if it's in the pictures, it could go the full 10). It will finish and yeah, the problem will effect the yield some.
A Sativa will really do the bulk, basically the same way an Indica will. The last 2 weeks before you start straight water the real bulking or filling out begins. Sativa's seem to start that slow and come on strong at the end......I have a VERY Sativa pheno of Pineapple express and she goes 12 weeks and packs it on from 8 forward. I run the last 2 with straight pHed water and the last 2 weeks she foxtails just lovely like......
That's one in my avatar and she's 9 weeks in that pic. and starting the foxtailing.

Yeah, reread your OP and water her with straight pHed water and harvest soon.
 
Z

zaybe

Active Member
Dr. Who said:
Ok, the Super Lemon is a strongly sativa dominate and the Blue dream is a heavy Sativa dominate hybrid and they both tolerate nutrients at differing levels,,,,the problem your having with the lemon is based on this fact.
It should run around 10 weeks to finish.....yours may get close but go short due to the P issue (if it's in the pictures, it could go the full 10). It will finish and yeah, the problem will effect the yield some.
A Sativa will really do the bulk, basically the same way an Indica will. The last 2 weeks before you start straight water the real bulking or filling out begins. Sativa's seem to start that slow and come on strong at the end......I have a VERY Sativa pheno of Pineapple express and she goes 12 weeks and packs it on from 8 forward. I run the last 2 with straight pHed water and the last 2 weeks she foxtails just lovely like......
That's one in my avatar and she's 9 weeks in that pic. and starting the foxtailing.

Yeah, reread your OP and water her with straight pHed water and harvest soon.
Click to expand...
Got ya! Thanks for all the info, it really helped me out. Yeah the SLH seems to stop bulking up.. I'll flush and chop this weekend. Blue dream is still going stronggg. Thanks again Doc
 
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