Blue-ish / Purple-ing of leave tips and downward curling - White Russian - CFL

mgjscdhl

Active Member
I'm sorry to post here again,
I'm definitely having some problems with the gardening side of things. I wish I didn't have to but I can't narrow it down. And one solution asked what ppm was in solution... And well, thats impossible right now. It doesn't appear to be same issue as yellowing but there is curling.

Several of the leaves are curling below. This seems to be top/middle and perhaps lower limbs. It does not seem to be new or old growth but equal between two. Some of the ends are also blue/purple. I've checked for mites or other damage caused by insects, there are no burns, etc.. I've checked all undersides of effected leaves and around stems, flowering sites. The only other growth is white pre-flowering (I beleive) starting at ground level upward and its almost 3/4 of the way to the top of plant.

I \\ THINK \\ it could be phosphorus or phosphate deficiency according to links posted, and online guides. I beleive its not a lockout, roots issue or heat/watering...
There is some blue/purple "blotches" on the outside edges of old leaves (spreading outward), some tips of leaves and now some newer ones. I've found two or 3 with minor discoloration ontop and one halfway down that is kind of bad. The top leaves are fairly new. The newest are clean but are SMALL (2mm) so I don't know if they'll change color or be effected.

The temperature and r/h has stayed relatively same. Although she dropped below 70F once during night cycle and over 80F another night. The discoloration was there before hand. These are not all the topmost leaves either but for the record the plant has been lowered to keep 3" away from lamps. 4 days ago I watered with well water, ph'd to 6.0. The roots themselves do not appear rootbound but she does need a transplant soon.

Here is my best example of my girl in her current state + one closeup of the leaf, under and top side. I hope it helps and its clear enough to show my girl.
 

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Waggs

Active Member
you are phed at 6.0? bit low try uppin to 6.5.. or at least between 6.3 and 6.8 what kinda soil? how old are the plants, feeding and watering habits?
 

mgjscdhl

Active Member
I want it said that originally I ph'd to 6.8ph, and then closer 6.5ph and had yellowing, curling and this issue started (at least with the clipped leaf [last picture]) while it was at 6.5ph. It could be because soil, and I do know I should start with better one next time. Its a simple peatmoss and perlite mix. Not 50/50 but close to 60, peatmoss / 40, perlite.

One thing. Since its close to transplant time. Can I add better soil on bottom of new pot, and around middle to "equal out" any mistakes already in mine? would that help any inbalance with ph, etc..?

The plants are almost 2 months old, transplanted 40 days ago into soil. I'm also using cfl in a microgrow box. The watering cycle is a bit in flux. I did a flush earlier (23 days) for possible nutrient lockout, salt buildup, fed with 10%, then 20% of recommended fert, the last week (5 days ago) I watered only. From the looks of the folliage she's about due for food/water.

eg. get a "potting soil" without fertilizer, pack some nicely on bottom of large pot. Transplant the plant from old (smaller) container to a new, larger one and then fill up sizes/top with more "potting soil".


Let me know if you require anymore info, pictures, etc.. I'm sure I can make them available.
 

Waggs

Active Member
you can use a good soil for your transplant for sure. I'd do that soon and see if they shape up.
 

mgjscdhl

Active Member
yeah. seems like a good idea since the soil definitely isn't "optimal". I think between the soil and fert its probably not getting all nutrients. Although, admitedly, its probably 99% soil's fault

thanks
 

mgjscdhl

Active Member
I have some fairly bad news, and this thread here will need to be closed. Those wondering what happened please look up my nickname here or white Russian cfl 2010.

I think for every single email, msg and post for help. I hope you'll still be here when I have questions. You all have been indispensible
 
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