Plant dying in a few hours?!

[Crane]

I got some very sick plant, a Greenhouse Seeds Lemon Skunk.
After saturdays watering (i water once a week for now as the plants got trasnplanted from 7liter to 25 liter bucket 3 weeks ago) that had 3ml of BioGro, 3ml of BioBloom and 3ml of Alg-A-Mic (all biobizz) with a PH of 6.7 everything looked fine but in a few hours the lemon skunk collapsed.
All the other plants use the exact same media, exact same fertelizers, in the same room, the same lightning, same temperture, same humidity and same bugs. only the lemon skunk is dying.
I'm running 3 other indica strains from GHS that came in the same pack.

I've checked the PH in the soil and its around 7, nothing that should cause that reaction.
Its not temps or air circulation issues as I've changed its position from being the closest to the intake vent and now it gets more heat and less air, yet it doesn't help at all.


Also, he doesn't die. Leaves are intact firmly as when he was more perky and no major yellowing.
It does curl like crazy though.

Its not overwatering as I stuck my finger in and there is no water build up.

its not underwatering as I gave it around 5liter of clean water to mini-flush it and it didn't do anything.


I'd love any information you might have

 

[EvilTwin]

Crane,
Clearly, something in your feeding did it in. Whether it wasn't stirred up enough or your ph meter is off. You feed...two hours later collapsed plant. You don't have to be a detective to figure that out.

Flush the plant...pray that it survives...and be more careful in the future.

Hand watering I presume? Did that plant get the last dregs of nutrient solution in the watering jug? Often that contains undissolved nutrient salts. Good idea to throw that last bit out. (just a thought)

Hope she survives..
ET

 

[Crane]

That might be the case. Although I give each plant 1l doses in rotation until all of them get 3l that plant might have been the last one.

I will flush it clean today. Thanks a lot

It does seem like it would recover - the joints are firm and most of the stems are still standing. Had plants recover from worst.


I will update as we go.


Weird that I never had this problem before as thats my regular method.
I'll remember to stir well in the last quarter of solution as wasting ferts is... a waste XD

 

[EvilTwin]

Crane,
I mentioned that particular problem because I burned a plant doing that very recently.

Your method helps but still, I can't help thinking it has to be related to that feeding. Don't you agree?
ET

 

[Crane]

I've remembered that it wasn't the last plant so it didn't get the last dose.

I've flushed it with 16 liters of 6.4PHed water and all of it came deep brown.

If it recovers and this flush solves the problem I just left guessing that this plant in a light eater.
If it doesn't it might be some issues with the soils PH (it was a tad over 7PH two days ago) that I don't really know how to solve except using lower PH solution for feeding.


Now that I think about it, maybe because the plant didn't use some nutes (probably because of the soils PH) and it built up it got trapped in a pocket and the main root got dipped in a nutes pocket and so the plant got this issues. If so, flushing the medium and airing\packing the soil would solve it.
If it will show signs of recovery I would loose and compact the soil to make sure this option becomes irelavent.

 

[EvilTwin]

Crane,
It's really hard to say. Usually plants of the same strain behave somewhat uniformly. But if these were from seed, it could be a light feeding pheno.

It's sort of hard to adjust ph of soil already in use. People do use dolomite lime as a top dressing but it's slow. Just a few tablespoons I' would think. The other lime...hydrated lime I don't think is meant to be used with a live potted plant. More for soil prep before planting.

What your doing by adjusting your nute solution ph downward is probably the best thing you can do right now.
ET

 

[Crane]

haven't seen dolomite sold around here. or blood meal. or bone meal. or kelp meal. or guano.
I wish they would have sold it, but I can't seem to find any.

Thanks for your help EvilTwin