We had maybe one week that was cooler then the previous, but it went just one or 2 nights at 18-19, for the rest of the time the minimum at night was 20-22.
Dry out? I usually think i overwater them, also cause they go into guttation a lot of time.
And all the others ( 6 banana plants ) that are in smaller pots are fine and i usually water them the same time, i just give the big one more.
Nothing can be excluded, maybe i don' t let it permeate enough, i can' t be 100 % sure.
PS : thanks for the answer
