‘I was specialising in painting, but I was also interested in photography, sculpture and installation. I guess I naturally came to film and realised that it combines all those things. It’s photography, sound design and acting. It combines all these artforms and it was this perfect medium to tell a story through time. Working as an artist or, say, a painter or a sculpture, you predominantly work by yourself and produce everything yourself. The greenhouse was so private. It never occurred to me to invite other people in that space.’