My stem has turned a purplish red. Is that fue to a magnesium dificiency or a phosferus dificiency? If it is a magnesium dificiency may i use epsom salt to correct that. If so how many spoon fools per gallon? Thanks
My stem is a purplish red. Is that from a magnisium dif or a phosporus dif? If it is a magnesium dif can i use epsom salt, If so how many spoon fulls per gallon?