As with many of Banksy's works, the latest piece caused a debate and range of opinions, including from some conservation campaigners who say the tree was pruned back, or pollarded, too much.

It features green paint on a wall behind a cut-back, or pollarded, tree to look like foliage.

Willows are coppiced — cut regularly to within an inch or two of the base to flush fresh growth — or pollarded, with cuts made higher up on the trunk or branches.

I have always liked the formality of this garden, the gravel paths, the pollarded trees, the geometric patterns.

In my work as an arborist, I often visit wonderful woodlands — ancient forests of bristlecone pines, immense groves of redwoods, endless woods of quaking aspen or pollarded oaks.