(EXPERIENCED GROWERS ONLY) Wtf has happened to my plant? :/

I'v had this plant for about 2 months max, but something has grabbed my attention lately that doesn't seem right to me at all. The stems have turned purple, not the whole of the plants stems but say about 75% also the leaves have gone blotchy purple and then WHITE! My assumption is the Ca/Mg because the tips have lifted up, but the blood and bone has just the right amount of Ca. So this is why I need your help Iv looked and looked on the web for the exact same problem but couldn't find it so i made it! I'll post some pictures which should be 1000 words. (Iv got the problems easily visible in the pictures) Any tips, hints or anything at all to help me receive a healthier and beautifier harvest would make me very thankful.

Thanks guys, any more questions you may have or pictures you may need please ask I'm just having a brew .

Purple stem might be Phosphorus deficiency.

Hemlock said:

Purple stem might be Phosphorus deficiency.

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I agree with this. IMO he should check the PH of his runoff water. Probably a lockout issue.

yeah, I second PH

It looks like sever N def to me...
N def can cause purple stems too.

from what i understand , Phos def. can also make the leafs look necrotic "dark blotches on the leaf" i don't see any of this. in Nitrogen def. the leafs start to turn pale from the bottom up. i see a lot of pale light green leaves on your plant. not saying its the prob. but thats my opinion. here is a reference for you

http://growweedeasy.com/marijuana-symptoms

hope it helps. !

well dude looks like your feeding is all wrong, i think its all cuz i for one am sure that purple stem is due to p,k and the yellowing has got to be N. and i know if you lock one out it can cause the others so .. how do you feed ?

How log has she been in that pot? I agree N def, as well as what appears to possibly be stretching and leaf drop caused by being root bound.?.?. (lack of vital nutes all together) my .02
Vinny Seed

My Ph is 5.5, The pot was about 2-3 weeks ago but its a massive pot so the only other transfer is to the ground? Im using Seasol as of 4 days ago anyway I followed the directions of use and haven't seen any real changes. I have also noticed 1 of my smaller plants have also shown signs of purple stem, I'll upload more pics of what im feeding and pot and also my new baby

mugan said:

well dude looks like your feeding is all wrong, i think its all cuz i for one am sure that purple stem is due to p,k and the yellowing has got to be N. and i know if you lock one out it can cause the others so .. how do you feed ?

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On top of what has already been said....definitely a Nitrogen deficiency with your pale leaves. The stem, like Mugan said, is most likely your Phosphorus and Potassium. But if you're sure that it isn't ph lock then it could be your feeding schedule....so yeah, what have you been giving it? Too much nute feeding can kill your girls by making them look deficient...but that goes along the same lines as pH lock, to where it can't absorb anything.

If we're all wrong, then it could be that it recently froze where you are and the plant is dying from that...

View attachment 1934175

If this is the only nutrient your using, then it would explain everything.

It specifically says that it's a conditioner and "contains virtually no nitrogen or phosphorus". Your plants need both phosphorus and Nitrogen!!!

BTw i just noted that you said your PH is 5.5 , thats a no no , u need it around 6-6.9

jpill said:

from what i understand , Phos def. can also make the leafs look necrotic "dark blotches on the leaf" i don't see any of this. in Nitrogen def. the leafs start to turn pale from the bottom up. i see a lot of pale light green leaves on your plant. not saying its the prob. but thats my opinion. here is a reference for you

http://growweedeasy.com/marijuana-symptoms

hope it helps. !

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I see ~3-4 different deficiencies. When that's the case it's nut lockout from fucked up PH 90% of the time.

I would suggest misting, with a slight dose of a general NPK fert(ASAP), followed up with a healthy dose to the rootzone.

You should see improvemnt within a couple days of misting foliage, and a big change about a week after feeding!!

KingIV20 said:

It specifically says that it's a conditioner and "contains virtually no nitrogen or phosphorus". Your plants need both phosphorus and Nitrogen!!!

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good catch

It's starving to death!!! feed it!! nuff said!

dude seasol is no where near a fert!! thats like ur main problem right there!!.. ur ph is 5.5? thats not insanely bad but u gotta pick it up... ur using seasol and u wanna get every lil bit of the limited amount of shit in it... so yeh..

get some PROPER fert and start off with 1/4 to 1/2 strength and then sort ur ph asap!!

then u will be laughing

pH shouldnt be 5.5, tahts for hydro, not soil (6.
id say yea, theres a lack of nitrogen (bright yellow leaves)
and its not absorbing enough phophorus (either due to lack of it in the ferts, or low temps maybe?)

fix the pH issue asap, then slowly raise the nutrient levels