Normal maturing purple pheno or a problem?

cannabisdreams

Well-Known Member
Hi all! Been away for a while but I've been lingering here and there. I have a question or, rather, I'm looking for a little support. I have a hybrid that came from seeds I made with a 'probably' Sour D female and some Fortune Cookie pollen. She's at 55 days flower under 600 watt led in a 2x4 grow tent. I have good air circulation and temps remain steady at 78F during the day and no less than 70 at night. I was planning to harvest in the next few days to a week so the answer doesn't matter on this grow, however, I did not take clones of this one and if its a possible GSC or Kush purple pheno, I want to reveg for clones.

Please tell me what you think, is this a potassium deficiency or a phenotype .... or both?

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GardenGnome83

Well-Known Member
Hi all! Been away for a while but I've been lingering here and there. I have a question or, rather, I'm looking for a little support. I have a hybrid that came from seeds I made with a 'probably' Sour D female and some Fortune Cookie pollen. She's at 55 days flower under 600 watt led in a 2x4 grow tent. I have good air circulation and temps remain steady at 78F during the day and no less than 70 at night. I was planning to harvest in the next few days to a week so the answer doesn't matter on this grow, however, I did not take clones of this one and if its a possible GSC or Kush purple pheno, I want to reveg for clones.

Please tell me what you think, is this a potassium deficiency or a phenotype .... or both?

View attachment 3837148 View attachment 3837149 View attachment 3837150
Looks like you've been starving that poor plant!
 

cannabisdreams

Well-Known Member
lol, thanks all. Too much P, too little everything and too little N. That all sounds like a pH problem....however, pH of the soil is 6.5 and they are fed 11-35-15 with micros. I could flush with a few gallons of full strength ferts but I am pretty close to harvest, the trichs are already all cloudy, just waiting for a few to go amber.... should I feed them this close to harvest?
 

rockmtnbuds

Well-Known Member
I wouldn't.. I'd ride it out till the end the look like you only have a week or so left.. I think you did hit them with bloom ferts to early and there n def. I'm experiencing the same thing
 

Dr. Who

Well-Known Member
lol, thanks all. Too much P, too little everything and too little N. That all sounds like a pH problem....however, pH of the soil is 6.5 and they are fed 11-35-15 with micros. I could flush with a few gallons of full strength ferts but I am pretty close to harvest, the trichs are already all cloudy, just waiting for a few to go amber.... should I feed them this close to harvest?
I wouldn't.. I'd ride it out till the end the look like you only have a week or so left.. I think you did hit them with bloom ferts to early and there n def. I'm experiencing the same thing
It's NOT N def you guys! P TOX! CLASSIC expression of it!

TOO MUCH P and "too early" is going to be part of it!

@cannabisdreams 11-35-15 Kinda a stiff NPK value eh? Even if you cut that into 3rds your what ? 3.6 - 11.6 - 5 The P is too high in that ratio! I like the N and the K. Those are OK but, the P is dbl + what it should be for bloom use (starting wk 4 after the flip).
The next point would be that, I bet you started them too early also! I mean, it shows in you pics. In fact it screams it!

As far as pH is concerned.....There are no adverse pH actions going on here - at all!

@rockmtnbuds You have the same exact problem! NO bloom foods till week 3 after the flip AND even then (with some strains) it's mixed 50/50 with the veg nutes and you go 100% bloom at week 4. Using high N amounts will only slow the inevitable "yellow out". It's proven fact that N in larger amounts then the plant needs in bloom will stunt budding and give bad yields of undersized nuggs!

When I ran synthetics. I liked low NPK ratios (something like 3-2-3) and feed at every watering (metered amount), everyday at lights on. The plants got a rather minor bump up of N,P, and K at the flip (like upped to 3.5-2.6-3.5 and at week 4 I began adding a P/K "booster" of 0-7-9 every other watering for 2 weeks and then every watering till the finish....some fast and hungry strains got the booster everyday.....

I went back to organic water only soils.....

I must say I am getting very impressed with what some around me are doing with Botanicares KIND line and Si (Dyna's Pro tekt) as the only supplement.
 

rockmtnbuds

Well-Known Member
Yea i just switched to earth juices full line. Just getting it dialed in. Started the bloom ferts a little early but i think the plant that had a problem in my case was light sensitive. everything below the net is green and lush. everything above it is faded yellow check it out in the nextlight journal
 
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