oren_a said:thanks for the response.
the spray is just water, I don't usually spray them. It was just once..
About the soil, its a new soil (Garden Mix)
It could be that I over water them ( I have not watered them for 4 days and the soil is still wet)
About the edges damage .. it could be because of a sun shade I tried to install and it might damaged them. I took it off.
Anyway I will try to let the soil get dry and will report back in a week or two.
how much sun they should get?
Thank you.