Light green fan leaves turning yellow on edges inward in late flower with curling

[pass the pipe]

Hi all, I feel I may have a problem here, as my auto here is looking a little off to me but I'm still new as this being my 2nd grow. A few big fan leaves are yellow while some smaller and medium sized leaves are light green kind of like lime color green starting to turn yellow on the edges and the edges of about half if not most leaves are curled upwards as seen in the picture below, sorry for bad quality as the lighting of the hps throws off my suspicions of a deficiency in the pic. But my soil is just straight fox farms ocean forest no nutes used since I started just whats in the soil in a 7 gallon pot under a 150 watt hps inside a cab of 6 feet tall and 2 feet by 2 feet, if any of the info helps I hope. Also it's a dinafem white widow autoflower at 76 days as of typing this now, but as I asked does anyone know what maybe going on here or is everything normal pretty much and I'm just stressing over nothing?

 

[seraphim19]

Its very hard to tell under hps light as we cant see the true colours of the plant. Can you post a pic taken under natural light?

The leaves curling upward looks like you have heat issues. What temp is your grow space running at?

From what I can see there doesn't look to be a deficiency, it may just be yellowing naturally with age as it finishes, but to be sure I would have to see a natural light pic.

 

[CGR]

Welcome to AFN Pass the Pipe:smokebuds:stop over and say hi to the other members when you can:tiphat:...good luck with your girl

 

[pass the pipe]

Thanks for replying, and ill try to get a picture up later tonight for sure, is there anything else that may cause the plants leaf edges to curl like that? Also to be taken noted is the buds are really small at this age at least to me compared to other WW auto grows and my last one had finished at 75 days or so, they're dense but jus don't seem to be getting much bigger, does anyone have any input on what could be going on?

 

[pass the pipe]

As asked earlier I finally got a somewhat decent picture at lights out, I'm not sure if you guys can see what I was talking about, but my main concern is the bud size especially the main cola as you all can see is still small as hell and the pistils have shriveled and receded inward as if its close to harvest but visually the buds are really undeveloped, can anyone pinpoint what's going on here?

 

[pass the pipe]

I know the picture doesn't help to much to identify what may be wrong with my plant but I jus checked it again earlier this morning and the very bottom leaves seem to be getting worse then a couple days ago as in the yellow bottom leaves are browning up and dying and the buds are still very small, can anyone help ASAP? Otherwise I might jus scrap this grow and start over. If it helps determine the cause, every time I have watered I have never seen any run off through the pot as in no water has ever come out the drain holes since it has been planted, now I know that isn't good, but is there something I can do to help the drainage this late in flower or no and if anything how much should I flush the soil with when it's a 7 gallon pot?

 

[A4]

That plant is in a 7 gallon pot and you have never had any runoff? You most likely have a pretty bad salt build up in the soil. With no runoff, I assume you haven't been checking the ph of the soil. Ph could be about of whack as well. I wouldn't scrap the grow as you should still get some bud off of it and the overall health of the plant doesn't look real bad. You really need to water the plant until you get runoff. At 76 days you should be close to harvest so I would start giving her a flush with ph'd water. There isn't a lot more you can do considering how late in the grow this one is.

For future reference, no matter how large the pot is you have to water the plant to get runoff every time. In other words, don't just water to make the soil wet. What you are trying to accomplish is wetting the soil, yes, but you also want to wash out any nutrients that may not have been used. This keeps your ph constant in the soil and helps bring new nutrients to the roots. It also, keeps the salt levels down which will cause nutrient lock out if build up occurs. So always water and feed the soil until you have 10-10% runoff. In other words if you give the plant 5 gallons of water you should be looking for 1/2 gallon coming out the bottom. If you don't get that with 5 then you need to add more. For 7 gallons, look for about .7 gallons runoff, for 10 gallons water, look for a gallon of runoff. Hopefully that helps with future grows.

 

[pass the pipe]

Thanks for the reply I already guessed there wasn't too much possible I could do this late as you stated it's now 80 days since popping ground and I flushed the soil about 3 days ago with about 3 or 4 gallons of water and got well over a gallon run off if that helped at all to maybe seeing the buds swell they still have not gotten bigger as far as I can tell and I believe it has a nitrogen toxicity as it seems to be having real dark emerald green leaves with the talon claw effect like most plants get with too much nitrogen, in your opinion or anyone else's for that matter think its still able to be saved? As in at least pull a decent harvest? All the buds are still really small like the size of a penny and a few bout the size of a quarter at most, or is it really to late and should be harvested soon for what there is?

Another question, on average how long can an autoflower live til it actually starts to near the end of its life cycle and die?

 

[A4]

Hey bro, you have spent this much time growing it. Small harvest or not, you may as well try to get what you can. I don't know if the smoke will be great considering the high nutrients but there is no hurt in trying. I am no autoflower expert but I would think if you can get it flushed and if she continues to respond well you could feed a high PK ratio to see if you can get the buds a little larger. The trichs may all amber on you before you get her to the size you want but it would still be smoke.

As for the life cycle, it really is very strain dependent. I have heard of some going over 100 days and some only taking in the 60's.

 

[pass the pipe]

Thanks again I appreciate the help but I don't have any nutes as I wanted to grow organically even if its jus using fox farms ocean forest soil but is there anything besides the flushing could possibly do as I don't got any nutes to feed it or jus let it go as is you think?