I can't edit the materials I work with. My remit is to work with nature as a whole. I find nature as a whole disturbing. Nature can be harsh – difficult and brutal, as well as beautiful. You couldn't walk five minutes from here without coming across something that is dead or decaying.

I did tests on small stones before collecting and committing myself to the larger ones.

If I had to describe my work in one word, that word would be time.

Sometimes you need to stop doing something to really see it afresh.

I knew the tree when it grew, and the tree is now gone. The farmers cut it up, and it's become firewood. And there's this tremendous sense of absence and shock and violence attendant to that collapsing tree.

Ephemeral work made outside, for and about a day, lies at the core of my art and its making must be kept private.

It's frightening and unnerving to watch a stone melt.