lower leaves yellowing and dying

Don't listen to these noobs telling you that you need this or that...they are just overwatered...you say you water them everyday? Well that is too often...MJ likes to dry out..My soil plants need water every 3-4 days...overwatering will cause your roots to be underdeveloped which hinders the growth of your plant totally, and it is what is making your plant leaves look droopy and yellowed...it will also give you gnats...

I've cut back my watering to every 2 days...watered Tuesday and then today...won't again til Sunday...my grow room is pretty dry..not very humid..and the fan blowing on its lowest speed seems to dry the soil out pretty quickly...I'd rather not repot..I'd like to keep them in these pots till I can sex them...and my room is pretty much taken up at this point...I'm going to try no nutes and watering them thoroughly every 2 days..cuz everyone seems to say its over watering...just doesn't make sense that they would perk up once watered if they were over watered...I'm also going to get a temp gauge for the room...i think my temp may be a little high..my Cfls are putting off some decent heat
.

kdm3038 said:

Not even 3 hours later and the plant that was fallen over and the one that was drooping has stood back up and fluffed out after watering...

Click to expand...

It's really hard to diagnose certain problems with out first hand knowledge of what your conditions are.
A couple of things you pointed out leaves points me to your fan. You mentioned it was blowing pretty hard on your plants.
This in itself can be causing the plant tissue in the leaves to dry out even though there is water entering your root system.

Try adjusting the fan to a soft breeze, you can even deflect it off a wall if you can't turn it down, you only need just enough to move the ruffle the leaves a little.

beenthere said:

It's really hard to diagnose certain problems with out first hand knowledge of what your conditions are.
A couple of things you pointed out leaves points me to your fan. You mentioned it was blowing pretty hard on your plants.
This in itself can be causing the plant tissue in the leaves to dry out even though there is water entering your root system.

Try adjusting the fan to a soft breeze, you can even deflect it off a wall if you can't turn it down, you only need just enough to move the ruffle the leaves a little.

Click to expand...

Ya..I've adjusted it the best I can to barely hit the plants...could heat stress cause these conditions?

What is the average ambient temp and R/H in your room.
Also, what type of medium are you using.
Usually with heat stress you'll notice some leaf twisting.

FFS you can't grow plants in little bitch pots like you are. Do you realize how big your roots are right now? and you have like 2 inch of soil for them to grow in? WTF they are starving

Tbot said:

FFS you can't grow plants in little bitch pots like you are. Do you realize how big your roots are right now? and you have like 2 inch of soil for them to grow in? WTF they are starving

Click to expand...

So you don't think its possible for me to keep them in these pots till they bounce back and then sex them and repot my females?

Definately need re-potted. Overwatering is about the most common mistake a new grower makes, along with feeding too much. I will guarentee that at least half of the posts of people looking for help on their plants have either overwatered or overfed their plants. Do not try and 'schedule' your waterings, instead wait until the plant tells you that she is thirsty, or hungry. Lift the pot, and feel how much it weighs, if it is light then the plant has used up most of the water in the medium. You can then safely water. By saying that you water ' every day, every 2 days' etc. then you are trying to dictate the plants needs instead of 'listening' to the plant and giving it what it wants, when it needs it.

On a side note, when the pots are relitively dry, try and gently lift the root mass out of the pot and check the color of the roots. They should be a nice white. If they are a tannish color or brown then you will need to treat for root fungas. ( H2o2 flush). This is a common result from overwatering.

kdm3038 said:

So you don't think its possible for me to keep them in these pots till they bounce back and then sex them and repot my females?

Click to expand...

I'm not a "pro" at all this, but so far i've had 2 do this, and its definetly pot size. they were both in tiny pots and when i did transplant into the bigger one, the roots were so big and there was hardly any dirt left. I guarantee they are starving for whatever soil provides....everything i think lol. and also, only water when the soil fairly dry. stop completely spraying the plants too, i think they are big enough now to not need the extra moisture.

Ill be looking into repotting here in the next couple days...well see what happens from there...what size pot would be recommended to get them to about 2 foot tall? I don't have much room...the pots that I have now are pretty much using all available room...ill have to figure something out if I plan to go bigger...

I've got some pots 15" I do believe it's cut my room in half...ill be cutting down from 13 to 6...getting some more lights and going from there and hopefully everything will turn out well for them..when I repotted I looked at the roots..they were hardly even on the outside of the form it had from the pot...not to sure it was root bound issues...was likely in the future but don't think it was a current issue...well see what happens...hope all goes well..

when you water too much the roots dont spread and search and grow. The pot size was not an issue I wouldnt think. The watering "schedule" was the issue. I have let plants dry out until they are bone dry and drooping down then water them and they come right back. I mean every leaf hanging like its dead then water. Not saying you should do this, only that they tolerate it. They do not however tolerate overwatering. Even if it doesnt seem like much. In soil you gotta let that dirt dry right up before you water it or else you dont get root development and therefor do not get healthy plants.

So after repotting 6 of them and leaving 2 of them in the smaller pots and changing watering to about every 3 or 4 days for the smaller pots and about 6 or 7 days for the larger pots...the plants in the larger pots have grown to about double the smaller pots sizes. They have all recovered from the yellowing except for a few smaller leaves here and there which I've just ruled as a lack of light because they have gotten quite bushy and are hidden really...but they are all doing well...with the preflowers as large as they are I'm going to be switching 18/6 in a few days and plan to leave them there for for a while till the top half of the plant bushes out a little more then plan to go 12/12...I just hope that they hold up because the pre flowers are huge and they just want to burst out in buds. Any insight is welcomed...will take pics soon. Thanks