Cindy 99 - Yellowing Fan Leaves And Curling Tips

I'm still new to growing and since I'm new I've prepared for many mistakes/problems but I want to make sure I learn from this problem so I do not repeat it. I have a Cindy99 that's about 44 days into flower but she's looking pretty sad, probably about 60% of the fan leaves have started to yellow and pretty much all the fan leaves are curling down. Today I know the leaves are curling down a little because she is thirsty (shes pretty light) but even after I've fed her she doesn't perk up like she used to. I haven't seen any bugs or mites and there's a Bruce Banner right next to her that is a nice happy green.

What I'm guessing is there is either a possible nutrient lock out or just a deficiency in nitrogen. Another problem I believe is the self watering buckets, I don't know how well the water is moving through the medium with these. Any ideas from the experts what I've done (or not done) to this lovely lady? I'm not really worried about fixing the problem because I'm so close to the end I figure she can live on her one nutes until harvest.

Container - 3gal self watering container
Soil medium - Fox Farm Ocean Forest mixed with extra perlite
Light - 250w hps
Water schedule - no real 'schedule' just when the pots feel light and empty
Nutrients - Fox Farm Big Bloom; The Other Tomatoe (mostly molasses based), drop or superthrive every now and again; usually the plants get fed about every other watering

In the first picture you can see the huge color different between the leaves, sometimes it can be hard to see in pictures under the HPS. The second picture makes it look like the buds are really yellow as well but they aren't, the buds seem to be fine right now.

May be over nutes. Could be the ph.

haloman420 said:

May be over nutes. Could be the ph.

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Hmm the only way I can think she's getting too many nutes is because of the reservoir in the bottom of the buckets but other than that I've been fairly light on nutes, especially the last week or so since I started to see the yellowing. I've never seen how PH affects plants but I do need to get a PH tester for my water as I've been a bad planter caretaker and have not been measuring PH.

Edit: Anyway tonight I think I'll 'make it rain' on her to clear things out and see how she looks in 3-4 days.

i notiuced the C99 ate a shitload of cal/mag thru its whole lifetime....in flowering it still liked calmag, but didnt love the P/K so much. I found it to be a lil sensitive in flowering..which suprised me becuase it was a pig in veg lol

Dizzle Frost said:

i notiuced the C99 ate a shitload of cal/mag thru its whole lifetime....in flowering it still liked calmag, but didnt love the P/K so much. I found it to be a lil sensitive in flowering..which suprised me becuase it was a pig in veg lol

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Good stuff to know, I've been fairly light on the calmag lately.

looks like classic nute deficiant fan leaves towards the end of flowering to me. Which isnt really a bad thing. It means your plants are using up all their nutrients and asking for more. Most strains do that after a few days of flushing at the end. ive grown a few that start yellowing like that real early and others that stay green until the end. Most c99 phenos flower 7-8 weeks so id say your doing fine . Also, not condoning this, but i grew some great pot my first round without a ph tester. Alot of nutrients are formulated to take the ph down around a usable level. I feel like in that case i did well because everything was consistent. Even if my ph was at 5 (which im pretty sure it was around from the Molasses) it was atleast constant. Snap a few non hps pics, or some quickies right when the lights powering up if you cant move em. The weird part to me is that in first pic there looks too be some really green growth down below? cant tell if its coming from another plant though.

Quite right, we need better pictures.

prolly to late by now to correct this....harvest time is close...but next time

get soem calmag for the next grow and try feeding them some N thru flowering next time...i garentee you will see a diff....the Cindy is a totally diff plant in flowering, took me a couple grows to get to know what she likes, now im after the bigger yield.

Dizzle Frost said:

prolly to late by now to correct this....harvest time is close...but next time

get soem calmag for the next grow and try feeding them some N thru flowering next time...i garentee you will see a diff....the Cindy is a totally diff plant in flowering, took me a couple grows to get to know what she likes, now im after the bigger yield.

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Yup next time the ladies will stay green until harvest (or I'll at try to keep it that way). I'm definitely starting to read my plants better with each grow, I'm tweaking things more, learning more and getting bigger, better buds. The way I see it every failure (and I use that word loosely) with one plant is an opportunity for the next.

So I made it rain on Cindy, waited for her to get mostly dry and then gave her a nice feeding with some 3-2-4 veg nutes and some calmag. Now she's actually looking a bit better, still a little malnourished but better. I had fed Cindy about 3 days ago and today she was thirsty again, so she got watered with some calmag and we'll see if I can start to read my plants better.

I'm going to feed her again the next time she is dry and we'll see how things go. I'm still not worried since the buds look healthy and I'll probably be harvesting in the next 7-14 days (just whenever I see the trichs start to change).

Looks pretty frosty