Been meaning to ask this question for ages, but I've been very busy with
my own garden recently...

A couple of weeks ago I caught part of a garden makeover programme that
involved a design with a central pond over which three giant wooden
"bones" were arranged. Part of the programme covered a visit to a
garden where they showed a huge sculpture of a fern, fern spores and a
wood-and-stone sculpture that looked like a large backbone protruding
from the ground, all in a woodland setting.

Unfortunately I didn't catch the name of the garden. Anyone know which
garden it was and where it is?

James