I have some of the "Paint-on" and I will try that if the spray doesn't work. Of course it is the ROOTS of the G.E. which arer the spreading problem.
I have laid up treaure for myself, in Heaven, by sparing a little Fern, which I tried to kill last year, but has survived.
It is troublesome, since it is growing in a path, sloping from the door to the rear garden.
TBA thinks it untidy, but I appreciate the efforts of the poor little thing --- OK I am an old Softie !!
