These things are free nowadays, since the builders merchants deliver
them on
a non-returnable basis. .

Your local recycling centre may have a skip for soil, if you can find
some way of getting it there.

My husband puts old gravel and sand bags in the trailer, loads them up
with garden waste and takes them to our nearest recycle centre. (We
have far more than we can recycle ourselves by shredding or dumping in
our four compost bins). All for free!

Kristina
on the Black Isle