Yellowing leaves...i know i know.

[budmantango]

Hello all,

I am having problems with yellowing leaves, they started from the bottom two little small ones, and its moving up the plant...
the first two big leaves that turned yellow are now turning brown and getting crispy..
im using regular plain potting soil mixed with some perlite, i have only watered maybe three times in the past two weeks because i overwatered them at first and they are still droopy some so im being sparse..
my water ph is in between 6.5 and 6.8 i test it before i water every time..i've watered down the miracle grow plant food thats 24-16-8 or somethin like that..
im growing under 6 26 w cfls in about 15x12x2 1/2ft
when i had these plants started they were under the lights in the closet in no box, the temps were staying at like 75 but now they are in the box and the temp is staying high like 80, which i know is too high, so im getting a fan today
I've been reading and im thinking the heat is blocking out the nutes, because i noticed my newer germed ones are starting this real early and not really growing, which would be the heat stopping its growth i think???

I've got to go now, but i will post pics up this afternoon....thanks alot everyone..

 

[apasunee]

how old is the plant?????

 

[luke88]

same problem- 2 bottom leaves are yellow- im curious...

 

[Weedhound]

Checking and adjusting the ph of the WATER you are using is not enough. The real key is to know what the ph of your SOIL is.

How to find out? Water until water comes out the bottom of the pot and then check the ph of THAT water. You may find it to be very different from the ph of your water and if the SOIL ph is off....you must correct it or your plants cannot uptake nutes correctly. Thats why adding more nutes and different things just makes the problem worse.....soil ph must be correct to start with or you won't get anywhere.

 

[Hutch]

I also have the same prob with one of my plants. I tried everything and it was my biggest fastest growing plant, it started with the round leaves and now the single leaves, I would really like to save it. Is it too late???

 

[Weedhound]

I don't know because I don't know anything about your plant Hutch.....but I'd certainly check the ph of both your water AND soil and correct them. (no nutes for now) If the plant puts out some new growth then I'd say it's not too late to save it.

 

[Hutch]

cool thanks but i dont have a ph tester, maybe i should invest. and they are blueberry. well if the ph is in question and not a nitrogen deficincy like i had origonally thought i may be fucked! you say no nutes, but i loaded up cuz i thought it was the nitrogen.

 

[Weedhound]

Don't give up yet.....go to your local pet store and pick up som $7 ph test strips...they will work fine for you. However...no PH ADJUSTERS from the pet store....different ingredients and way too many salts in them for hydro and/or soil applications.

Get your ph straightened out then work on the rest....nothing else will happen until then.

These plants have a remarkable ability to come back....if you only KNEW some of the things I've done to mine and they still always came back and gave me a good yield.

 

[Weedhound]

What you said about giving more nitrogen is a perfect example of what I mean (keep in mind...i'm only guessing...I don't know ANYTHING about your particular plant....)

Thats why ph is so important....abnormal ph will prevent certain nutes from reaching the plant where its needed...so more and more doesn't help....and in fact will make things worse by causing nute burn.

PH is ALWAYS first and last imo. I don't care whether you are growing in soil or hydro. Whenever I see a def....I ALWAYS check ph first.

PH MATTERS!!

 

[Hutch]

i use water straight from my tap and have read to leave it sit open for a day or two to release chemicals, thats what i use mixing a weak solution of miracle grow all-purpose cuz they are young, maybe my water has a ph issue! this is my first grow inside so im bout clueless. thanx for the help

 

[budmantango]

yes i know the ph of the soil plays a huge difference than just the water, i think i left out that i didnt wanna like flush the shit out of my plants because im worried about overwatering them...since they were overwatered at first, i get scared about pouring so much water till it comes out the bottom, but thats what i'll do...ne ways lemme get some pics...

 

[Weedhound]

Hutch

Yes...stop all your nutes. If the ph from your runoff is different from the ph of the water you are putting in the top (ideal ph of BOTH....6.2-6.8 then your soil ph is abnormal. The best thing to do is either flush the plant heavily with ph correct water until the ph is the same going in/coming out or transplant to fresh soil with the correct ph.

If the ph coming out the bottom is correct I would simply use ph'd water for several feedings until I felt the plant was recovering and starting to grow well again. If the plant looks worse....I would consider flushing anyway to try to get rid of any excess fert salts. (or again....transplant to good soil)

Aerating the water before use is good to rid of excess chlorine etc....but will still need to be adjusted to the correct ph.

Ps.. You can use distilled white vinegar to lower ph and baking soda to raise it (SMALL amounts) until you can get your hands on some true ph up/down made specifically for plants.

 

[budmantango]

i wanna say this guy is like 3 weeks old, was taller but i planted it deeper, the only one without perlite...

here is the one that is getting sick next...same age as above..

here is what i got goin, got a 4 inch fan mounted to the door today to hopefully keep temps down..

im gonna check the ph of the soil doing a run off test in a minute, do i need to test each pot and do like a median ph? i will for sure test the one without perlite, and the ones with but i wasnt sure about each pot with perlite....
The newer seedlings are starting to yellow on the small leaves so i'll have to get on this..

 

[iblazethatkush]

i wanna say this guy is like 3 weeks old, was taller but i planted it deeper, the only one without perlite...

here is the one that is getting sick next...same age as above..

here is what i got goin, got a 4 inch fan mounted to the door today to hopefully keep temps down..

im gonna check the ph of the soil doing a run off test in a minute, do i need to test each pot and do like a median ph? i will for sure test the one without perlite, and the ones with but i wasnt sure about each pot with perlite....
The newer seedlings are starting to yellow on the small leaves so i'll have to get on this..

Wow those are shitty looking plants for 3 weeks old. Mine are usually about 9-12 inches tall by then. No offense or anything man, but I think you got too ambitious considering the amount of lights you have. I would kill a couple of those and then focus the lights on fewer plants. Or buy more cfl's. You should think about it, it doesn't look like your going to get much of a harvest at the rate they're growing.

 

[Hutch]

This is exactly what one of mine looks like, only not this bad yet! I used miracle grow potting soil wich i heard causes ph problems itself.

 

[budmantango]

yea you gotta understand the two tallest were completely abused to begin with, and they would be taller, but when i transplanted them from some tiny ass syrofoam cups, i put them deeper in the soil, im not too worried about them, i'd rather figure out what is wrong with them before i get rid of em, so that i can focus more on my new seedlings that look like they wanna do the same thing...
i have one that i started at the same time as those two, its outside, i also put it into the soil deeper, but it is about 6-7 inches tall now with a few sets of leaves...
this is bagseed, and it is my first grow, im not trying to get a huge yield out of this, more like a trial period so i can get all of my experience in, that way when i buy some nice seeds i wont completely kill them...i've done my reading, now its time to test my skills lol...

 

[Weedhound]

Hmmm...have a feeling both of you are going to be flushing your plants for awhile. Thats either nute burn, abnormal ph leading to nute burn or overwatering and/or poor drainage leading to abnomral ph leading to nute burn. You guys see where I am going with this?

Flushing your soil heavily to rid it of excess fert salts and stabilize ph is the answer here......usually 3 x 5 the amount of water your pot holds....(1 gallon pot...flush with 3-5 gallons of water) and of course you'll make sure the ph is correct for all that wonderful water you flush with. You can also transplant those teeny things into different soil but frankly I'm not quite sure what kind since I grow hydro. I'm sure someone here can offer a good soil to use.

Good luck you guys. Not to be negative but ummmm....you boys have any other seeds laying around waiting to be germed? Now may be the time......

 

[WhatAmIDoing]

Wow those are shitty looking plants for 3 weeks old. Mine are usually about 9-12 inches tall by then. No offense or anything man, but I think you got too ambitious considering the amount of lights you have. I would kill a couple of those and then focus the lights on fewer plants. Or buy more cfl's. You should think about it, it doesn't look like your going to get much of a harvest at the rate they're growing.

yeah dude. i've only got one cfl, and at 4-5 weeks i started vegging (so 3 it was like..8-10 inches tall?). i'm not sure, but you prolly odn't have enough air in there. that's a lot of plants for that space, i'd say. buti'm a noob grower too, so someone correct me if i'm wrong.

 

[Hutch]

i will try to flush her out ( hopefully a her) and also hope that my problem wasnt overwatering in the first place! haha oh ya and no more seeds layin aroun!!! fucked on that one or they would be germin!

 

[budmantango]

i started flushing them out tonight...constantly checking the ph draining from the soil...
the only reason there are so many of them in there is because im hoping for 2 girls, i figured a couple MIGHT die since its my first time...haha sad i know
but im thinking about narrowing down ne ways, and maybe just clone if i have to..
is it bad to flush lets say within a 2 day time period??

has anyone ever flowered a plant that only has a few sets of leaves?? i'd love to see pics..

im plannin on gettin another 4 inch fan, they are only 3.50 so i can make an airflow pattern in my box...right now the box is missing a back wall, and placed against a white wall with about 2 inch gap, with a boxfan drawing air from the gap....im still havin trouble gettin temps down..