phosphorus deficiency late into flower? try to fix it or just ride it out?

hi guys.


i'm a medical card holder who just handed over my grow rights. i grew this until about one month into flower then due to a hurt arm, i handed over my grow rights to an old friend who is new to growing. i handed over my tent, nutes, lights, camera, everything. i'm old and am hoping to keep things this way.

this is them at 32 days. i just started to notice that one leaf was looking bad. we moved them that night.




it started with this about 3 weeks into flower:



this is them at 58 days. some of the leaves look tortured.





i like to take these genetics to 70ish days. they are nice at 60, better at 70.


a leaf at 58 days.



I have so rarely had problems that I’m not very good at fixing them when they come up.
i started with my old standby for plant problems - mynamestitch guide to sick plants - and checked out some of the info here.

i'm thinking there is a phosphorus deficiency. maybe some other problems too. i had my grows dailed in using advanced nutes sensi bloom and some additives but they switched to PH perfect and that stuff is not working for me. the last grow did about the same thing so i bought some cal mag plus and changed up how much of the PH perfect i use. same result. tortured leaves. the buds come out nice thank god but even some of the sugar leaves get affected.

only one plant looks like this:
the leaves look chewed up but there are no bugs. i checked and double checked. nada.




the plan is to keep going to 70ish days. is there something he should do to try to fix this at this late date? i just let it ride the last time. any suggestions would be appreciated.


in trying to correct the problem i got some additives and ended up with all of this:
PH perfect sensi bloom - big bud - sensizyme - bud candy - cal mag plus - got some rhino skin for free so using that too.

it's last time PH perfect will be used. in the past i've used most of the regulars - botanicare, GH, dutch masters, fox farm. i hate that i have to go find a new nute.

he's more bummed than i am. lol. i just tell him to relax and it looked like that when i did it too.

I would guess they are short on calcium and overfed in general. You could do a $5 soil test just to see where NPK levels are roughly at. Not sure you can correct much at this point so I would go cal/mag and water only to harvest. Your buds should still be pretty decent.

Bugeye said:

I would guess they are short on calcium and overfed in general. You could do a $5 soil test just to see where NPK levels are roughly at. Not sure you can correct much at this point so I would go cal/mag and water only to harvest. Your buds should still be pretty decent.

Click to expand...

thanks for the input.

we're 12 days from harvest and they were fed 2 days ago so i think i'll have him water them twice and then chop them. another 8 days or so. i'm concerned about trichs being damaged but it seems to mostly affect the leaves.

when i first noticed a "rusty" looking leaf, i got the cal mag. the PH perfect is at 3/4 of a dose. they have had the cal mag since day 36 or so so probably 3 doses at medium strength.
when all is said and done, the buds will be fine but those nutes have got to go.

as long as they look like the last batch, i'll be happy.

I'd give them some CalMag and your usual dose of nutes.

Different strains look "different" late in the game. My guess is that they are just ending their grow cycle and there is not much you can do about it. The overall pic looks great. The individual funky leaf does not look good, but it's only a leaf or two.

I do not think you have a problem. Just my opinion though.

I'd be happy with them, they always seem to look rough toward the end.