Message text written by "BP - \"Is this the list with all the ivy
haters?\""
>could I pour low cost walls for the
garden lets say using acetic acid and this unstable Gypsum (sulphur % said
to
be low) then waterproof the walls...or is this a waste of time.....and go
back to the cement....<

Given the probability that there will be contact with damp soil, and more
than light moist exposure, I'd recommend using the cement. Find a nice dry
interior use for the gypsum.

Mike E.