)vernight DEATH?!?!? 1 plant died among 20+sisters

C

CallingDrGrrentumb

Member
Growing in 50/50 coco/perlite mix including compost. Day temp 80, night temp 70s, 1200 CO2ppm, Combo of CDL and LED lights about 2ft from canopy
have been vegging 3wks after being transplanted from 1/2g to 5gal fabric pots. just about to flip to flower
tap water is 5satage filtered, still start with 350ppm.... water with around 1100ppm AN base, humic, kelp, silica
about 25 ladies have been growing fine (to great lol) for weeks.
IMG_20200120_203023.jpg
this morning found 1 completely dead; wilting, leaves drooping & pointing straight down
unfortunate and sad
IMG_20200120_203101.jpg
she was looking great, showed minor nitrogen deficiency but nothing alarming, yet died overnight (Sunday fine, Monday dead, literally overnight.....)
Its top feed drip, tubes are clear, shes getting water, can def tell by pot weight shes drinking plenty (soil is well saturated).
Only guess would be over-watering
Although, Ive heard that coco is extremely hard to over-water. its a 5gal pot and Ive been watering daily until 10%runoff. This is my first go with all coco (before has been mostly peat moss with a little, 10%, coco).
The pots definitely don't dry out, before id wait for the top inch or 2 be dry before water (worked out to be 1x watering every other day). All of the pots seem heavy, like they could use some more drying out, but most info Ive read says to water coco 3-4x per day?! so iunno; but over-watering is my only guess
also fed EWC AACT the day before, Saturday; but it was also ph'ed at around 6, and every plant got it, so dunno why it would effect only one....
anybody care to give their 2 cents?
thx!!

IMG_20200120_203009zd.jpg

IMG_20200120_203115.jpg
 
T

Titikshu

Active Member
Some people water 3-4x per day with Coco but it's typically smaller pots, smaller amounts, and during flowering. You're using fabric pots so it is even more difficult to over-water, but not impossible. You could always pull the root ball out and have a look. Are the roots white and sweet smelling or are there signs of root rot? It may help you save others.

Also check the pressure and flow rate in your watering system. Maybe that particular drip line was releasing more water than the others. Is your drip system designed in a circle to even out pressure or a straight line?
 
kroc

kroc

Well-Known Member
Pot looks a bit dry and that thing looks fried, you sure you didnt just miss one for a couple waterings?
 
icetech

icetech

Well-Known Member
I grow in 5 gal cloth pots using straight coco and my plants get 1-1.5 gallon every single night and i have never had one do anything like that.. always happy and fine with great roots at the end. I would be pulling it out of that pot to check the roots though, something had to have happened (obviously)
P.S. that really does look like massive over-watering somehow..
 
thumper60

thumper60

Well-Known Member
CallingDrGrrentumb said:
Growing in 50/50 coco/perlite mix including compost. Day temp 80, night temp 70s, 1200 CO2ppm, Combo of CDL and LED lights about 2ft from canopy
have been vegging 3wks after being transplanted from 1/2g to 5gal fabric pots. just about to flip to flower
tap water is 5satage filtered, still start with 350ppm.... water with around 1100ppm AN base, humic, kelp, silica
about 25 ladies have been growing fine (to great lol) for weeks.
View attachment 4461374
this morning found 1 completely dead; wilting, leaves drooping & pointing straight down
unfortunate and sad
View attachment 4461375
she was looking great, showed minor nitrogen deficiency but nothing alarming, yet died overnight (Sunday fine, Monday dead, literally overnight.....)
Its top feed drip, tubes are clear, shes getting water, can def tell by pot weight shes drinking plenty (soil is well saturated).
Only guess would be over-watering
Although, Ive heard that coco is extremely hard to over-water. its a 5gal pot and Ive been watering daily until 10%runoff. This is my first go with all coco (before has been mostly peat moss with a little, 10%, coco).
The pots definitely don't dry out, before id wait for the top inch or 2 be dry before water (worked out to be 1x watering every other day). All of the pots seem heavy, like they could use some more drying out, but most info Ive read says to water coco 3-4x per day?! so iunno; but over-watering is my only guess
also fed EWC AACT the day before, Saturday; but it was also ph'ed at around 6, and every plant got it, so dunno why it would effect only one....
anybody care to give their 2 cents?
thx!!

View attachment 4461377

View attachment 4461376
Click to expand...
check the base of the stem see if has been chewed on.
 
C

CallingDrGrrentumb

Member
Ya she definetly had water, the pot is still heavy with water.....
And the 4 plants around her were/are just fine, so its not heat. Not under-watered...
Maybe tomorrow rot, but still, to die overnight like that is crazy
She was all pretty and green, then, well, you see the pics......
Imma pull up the root ball today and give it a look see
 
C

CallingDrGrrentumb

Member
Just pulled up the root ball, the roots looked ok (not great, but not slimy) and no smell
But can tell 100% that she got overwatered.
Just don't know how.... It's 5gal fabric pots w.50/50 coco/perlite mix.
And the 20 other plants that are getting the same amount of water (and everything else) are doing just fine. Iunno...
But like i mentioned, the pots were pretty dmn heavy with water, if it was my usual peat mix i would've worried, but I thought coco was a little different and you want a lot of water running thru there...

So I've let everything sit for a day (no watering for 24hr) and the pots are about 2/3-1/2 as heavy, definetly dried out a bit

Any suggestions on how to water coco from here out?
Thinking i will water 1x/day, in the morning, until+/-10% runoff. Then let dry for 24hrs. That will be about 1 gal per pot (what i was doing when this one died is 1L 3x/day, so about the same amount of h2o, but spread out). I think this strategy will provide nutes and give enough time in between to dry...
We'll see. Keep u posted
 
C

CallingDrGrrentumb

Member
I have a mix of ceramic and LED. This particular planning was between a ceramic and a full spectrum COB LED (hipargero from amazon, 800w equiv).
Hmm just checked leaf temp for the plant that took her spot its 82*f and room temp is 84. Actually a bit warmer than i thought, gonna have to lower the AC a few degrees
 
Nutty sKunK

Nutty sKunK

Well-Known Member
CallingDrGrrentumb said:
Just pulled up the root ball, the roots looked ok (not great, but not slimy) and no smell
But can tell 100% that she got overwatered.
Just don't know how.... It's 5gal fabric pots w.50/50 coco/perlite mix.
And the 20 other plants that are getting the same amount of water (and everything else) are doing just fine. Iunno...
But like i mentioned, the pots were pretty dmn heavy with water, if it was my usual peat mix i would've worried, but I thought coco was a little different and you want a lot of water running thru there...

So I've let everything sit for a day (no watering for 24hr) and the pots are about 2/3-1/2 as heavy, definetly dried out a bit

Any suggestions on how to water coco from here out?
Thinking i will water 1x/day, in the morning, until+/-10% runoff. Then let dry for 24hrs. That will be about 1 gal per pot (what i was doing when this one died is 1L 3x/day, so about the same amount of h2o, but spread out). I think this strategy will provide nutes and give enough time in between to dry...
We'll see. Keep u posted
Click to expand...
Was the soil wet or dry?
 
Nutty sKunK

Nutty sKunK

Well-Known Member
CallingDrGrrentumb said:
Ya she definetly had water, the pot is still heavy with water.....
And the 4 plants around her were/are just fine, so its not heat. Not under-watered...
Maybe tomorrow rot, but still, to die overnight like that is crazy
She was all pretty and green, then, well, you see the pics......
Imma pull up the root ball today and give it a look see
Click to expand...

Just realised the soil was weetos.

Have you looked at the stem like other have mentioned?
 
C

CallingDrGrrentumb

Member
Stem was not chewed on but the skin (bark?) At/below the soil line was kinda peeling/loose, like it was wet for too long.
So ya, the roots definetly drowned (don't think it was rot, just saturation and drowning....)
Just surprised at the way it went down. I always thought you'd get some warning and be able to take corrective actions, but this happened lightning quick
 
T

trambles

Well-Known Member
I had this exact same thing happen to me,never could figure out what happened. She was healthy one day and totally dead 25 hours later. That was one plant out of 36.
 
jdog127

jdog127

Well-Known Member
Plants can get diseases just like people can and sometimes they just can't be diagnosed. This seems to be the case for you as all of your other plants are healthy and thriving and you had one that's basically wilted away to nothing. More than likely this is a symptom of something that is out of your control. Just Like people getting cancer.
 
You must log in or register to reply here.
Top