Dry and curled leaves

[Jackxzx]

Hello guys,
My first post here.
Sorry for my english!
I have a question, my girlfriend started growing marijuana but after about a month, suddenly from day to day the leaves began to dry up and curl at the on while remaining green, I claim that she had given her liquid fertilizer the previous day (but i think it doesn't matter) . The leaves if touched breaks, the rest of the plant (trunk and branches) are green. I attach you some photos, thank you in advance!

 

[who dat is]

When you say that they were given fertilizer did you water it in or was it a foliar sprayed on? In any case it would seem that whatever was applied was way too strong and has burnt the plants. They aren't looking so good. I would flush the medium with plain water and let them be until they need water again. Cut down whatever application rate you were doing with the fertilizer next time.

 

[MrBungle]

I agree with Who dat... or even start over with new plants and be careful to read the instructions on the bottle of fertilizer.... often times the formulation is too strong to begin with and you have to use less than recommended anyways

 

[who dat is]

Honestly if you're not confined to any one size pot then you can get away without feeding them so long as you pot them up (transplant) on time before they start getting too hungry and root bound. Knowing this timing though comes with experience.

 

[Jackxzx]

Thanks to all for the quick answers, but a question arises, the fertilizer was also given to smaller plants without any consequences, why?

 

[who dat is]

heavy vs. light feeders?