Help Diagnose Sick Plant

Up until around 2 weeks ago this plant (First pic) had been doing fine. Or so I thought. Over the last 2 weeks it has completely stopped growing and the leaves are drooping more and more. It looks overwatered to me, but I have watered it only when the pot feels light, the same way I water my other plants and the others seem to be doing fine. I use Jack's classic all purpose/blossom booster, and FF Big Bloom. I alternate beween the two every other watering. You can see in the pics that my other plants seem to be doing really well. Think this plant has some kind of root rot going on or something ? Suggestions ?

Are you over watering?? It could be a magnesium problem. This link may help. https://www.rollitup.org/marijuana-plant-problems/187469-newbie-please-help-me-diagnose.html

haloman420 said:

Are you over watering?? It could be a magnesium problem. This link may help. https://www.rollitup.org/marijuana-plant-problems/187469-newbie-please-help-me-diagnose.html

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I try to only water when the pots feel light when I lift them, so I can't see how I could be overwatering them. The pots only feel light enough to add water like once a week. Sometimes I go more than a week in between waterings. Would it be likely that this one plant would have some kind of deficiency while the others that are in the same soil and are given the same nutes are doing fine ?

it is possible dabong, you should give the soil a rinse out (3x normal water 2 times a week for 2 weeks). this will clear the soil of any salts and or extra neturts. atleast if this step doesn help, it cant hurt 2 much. (nothing they wont recover from soon)

ok... I will try flushing the soil. It's growth is still stopped completely so I need to do something. I'm affraid it might die if I leave it as is.

I went thru your journal becaus i wanted to know if these were all the same strain and what stages they were in because not all strains grow the same inflow some shot up some dont this one looks like it does not and the others do so ide say leave it alone the terminal bud cola looks to be developing fine the center top growth for the second week youll prally get a set of nodes and the cola.

IMHonestO.

when posting like this the strains and stage is pertinate if i was lazey or did not care i would have just said the same thing flsu and go from there and assumed they were all the same and in veg. not that it stop when you when switch to 12/12. be very clear to get good answer and short and to the point

try circ air with os fans and adjust humidity and temp.

safe mate,id say that its probably underwatered if your only feeding once a week,have you got good drainage?

Looks under-watered to me. My question is, what's your water and soil ph looking like? If those are out of the range they should be in (6.5ish) they you'll start having all kinds of symptoms.

more info needed - temps - humidity - ph - light powers etc..

u have a bit of light wilting (leaves curling down) - most likely lack of water but combined with a few other issues i feel

get 40% humidtity 6.5 ph 27deg C temps - i assume u have enough light



The easiest one to sort is temp, so start there - get a max min temp gauge ($7) this way u will soon see if temps are too high or low at any point during day

gl dude

*BUDS said:

try circ air with os fans and adjust humidity and temp.

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The RH inside my grow room stays between 40 and 60%and I keep the temp around 75-80F, I'm assuming that is within acceptable range?

bud monsta said:

safe mate,id say that its probably underwatered if your only feeding once a week,have you got good drainage?

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I think I have adequate drainage as water runs through my soil fairly quickly when I do water, and I never let the plants sit in the runoff water.

brownbearclan said:

Looks under-watered to me. My question is, what's your water and soil ph looking like? If those are out of the range they should be in (6.5ish) they you'll start having all kinds of symptoms.

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My tap water PH levels seem to stay at around 6.7-7.0. I have a PH test kit, but the range it tests from only goes down to like 6.0 and the color is just yellow at that level so it's confusing to get a really accurate reading. I also have a cheap soil ph meter that gives a reading of around 6.7 for the soil as well.

So the best thing for me to do would be to flush this one plant with like distilled water? This PH stuff confuses the hell out of me!

ok then just lower the ph and water more often and you should see a difference.Have you got anything else in your soil mix?perlite or vermiculite?

bud monsta said:

Have you got anything else in your soil mix?perlite or vermiculite?

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When I mixed my soil I added like 20% Worm Castings and 10% Perilite. I just watered this trouble plant with some big bloom so I will see what happens over the next couple of days. If it doesn't improve I might consider transplanting it into fresh soil as a last resort.

Thanks for the replies/suggestions guys!