So My Plants Are Turning Yellow.

well this is something i see on here alot and now this time it is ME a little uneasy about it too. my plants have been doing very well. i am at like node 11 and now the very bottom leave on two of my three plants is very yellow. the one plants bottom leaves turned very yellow and then wilted but the rest of the plant looks ok. then with the other the bottom leaves are just yellow but not dead lookin just yellow... what do you think i have been spraying with purchased liquid worm poop as a very low nute and been giving bottled distilled water. is that wrong??? i have only been spraying the soil with the water and not dousing it with like a cup is that bad too??? plus the terra cycle nutes has only been given 2 times in the last week and half. what should i do? the temps are good and im not sure what it could be. maybe light????? i have 2 40W 5000k and like 4 13w cfl?

have you started flowering them yet?

if not.. it sounds like to me you've got some kind of nutrient deficiency.

In late weeks of flowering.. yellowing of the fan leafs is very very common and is a sign that the plant is beginning to get close to harvest time. So if your plant is late in flowering.. then IMO your plant is okay.

Pictures would def. help me out though.

peace and good luck

if u are still in veg, 2 things come to mind.

1) your using CFLs and your plant is at the 11th node, im wondering how tall the plant is? because the intensity from CFLs is reduced greatly with every inch of space between the bulb and its target. so, if the plant is to tall, the bottom leaves wouldnt be getting enough light, the leaves would turn yellow before turning a deathly color, and will usually fall off.

or 2) whats the PH of your mix as well as the PH of your run off? i've seen PH issues cause what i think your describing (if your still in veg)

goodluck!
JC

Not enough light/light penetration would be my first guess.
Maybe a mag deficiency either due to low mag or soil ph... you may want to check that. Nutes tend to run hot, and will slowly raise a soil's ph. Once the ph is above 7.5, the mag gets locked out, and the plant no longer has access to that nutrient. A mag deficiency usually results in the lower fan leaves wilting.
Good luck!

Edit: Typed 7 instead of 7.5

mmmk i think im going to try and give it some light down under then. in all honestly i do have much more concentrated light at the top of my plants. if that doesnt work i will try a diff nute because i am still in veg for maybe 2 more weeks im hoping. any suggestions on what i should use for nutes in veg and then for flowering too.?

this is the top of them tho!

My plants do this. And before I bought a HID It was a lot worse because the plants grew like a palm tree, loosing as it's growing.

what do you think i have been spraying with purchased liquid worm poop as a very low nute and been giving bottled distilled water. is that wrong??? i have only been spraying the soil with the water and not dousing it with like a cup is that bad too??? plus the terra cycle nutes has only been given 2 times in the last week and half. what should i do? the temps are good and im not sure what it could be. maybe light????? i have 2 40W 5000k and like 4 13w cfl?

Click to expand...

I'm still stumped on what water to use because people tell me different things. I personally know people who grow like a pro with tap water... wtf?? But I do know that if you are using distilled, you'll need a source of Calcium and Magnesium or make sure thats in your media or fert you use.
That seems like enough CFL to grow a one decent sized plant or two minis. The problem is if they are only above the plant you are loosing light. CFLs need to surround each plant completely to adequately emit enough lumens. I think a lot of it has to do with the fact that lumens of a CFL are lost rapidly at a short distance. The plant isn't able to soak up and use nutrients as efficiently because there isn't enough photosynthesis/respiration happening.

My plant are doing much better now that they are outside, then I bring them in under the HID at 6pm, and supplement with CFLs after it turns off at midnight. They sleep for 4 hours
My issue is I use tap water and dont pH shit because I'm roughin it till harvest man, on a tight budget. I aint wasting $16 on a pH kit. I'm eating that money, you know? My plants are groing fine, yellowing leaves, a little pink to white tips, here and there, but It's growing like a beast and green as fuck so who cares. I'm sure my yield will be slightly under what i could be but, hey, we are learning.

ya i would lean a lil more towards a PH issue...i have never used bottled water simply because i have always heard that bottled waters PH alone is like 5-5.5...obviously too low. i use tap water sitten for 24 hours, and always does me right...have never had a problem. soil grower though.

my two dollars on what is the prob with the yellowing of the leaves is not enough light. I had the same problem until I did somethig about it. I myself started off using cfl's but then I quickly went out and bought a digital ballest that utilizes both MH and hps bulbs. I also bought some mylar wrap, and wrap it around the walls so the light could reflect to the lower parts of the plant. I am not excatly sure how true this is but I am pretty sure that I have read some wheres that if you are using organic nutes, I use earth juice myself, that the ph of the soil is not really that important, like I said please don't throw stones at me just what I read not to sure how true it is but I have yet to ph my soil and have no problems with growing so far. Here is a pic of some swag bag seed weed one week into flowering.

There are ways to train your plant so you can keep the lights in the same relative area. Though it's a little late, supercropping would still help you. You don't have enough light for flowering unfortunately, I highly recomend putting it outside pretty soon if that's an option for you. It won't be ready till much later, but you'll have a way better overall product.

yeah i looks like it needs some nitrogen. just fertilize it with something at 3/4 strength. and i used to use cfl's, they are only usefull if they are within 8" of your plant. i had mine 3" away with fan blowing at the plant. i also managed to slowly use more and more MG until i was a little over full strength, but i dont advise you to ever use full strength unless the plant is slowly introduced to it... weed adapts pretty well

i have different lights for flowering.2x2700k like he 40w ones that fit in a shop fixture... and about 6-9 23w 2700k that i will place all around the plants for better lighting.

more lights now flushed the soil and the babies look good again. thanks for all the replies. i am just now looking for a good nutrient for the flowering stage..?