Pleached trees. All pros we spoke with recommend pleached trees, which are trained to grow in an almost wall-like form, as seen in this patio.

“Pleached trees are a fantastic solution for screening higher buildings beyond the [yard] by adding extra height above the fence line,” Lindsay says. “They’re often a great solution for your neighbors, too, as they give pleasing green screening and privacy on both sides.”

“They can add a lovely formal feel to a garden,” Tyrrell adds. Hornbeam (Carpinus spp.) is a popular choice, and Lindsay also loves beech (Fagus spp.).

Wilson has a preference for deciduous species. “[With these,] you get seasonal change and variety, and this approach allows light levels through in the winter months while the interwoven framework of the trees will still provide a modicum of privacy,” he says.