Question: I read the term pleaching in a gardening book and couldn't figure out what they meant. What is it?
Answer: Pleaching is a method of shearing planted trees and shrubs very closely into a high wall of foliage. Generally, maples, sycamores, and lindens can be used for this effect. It's something not seem often in the United States because it's very time-consuming, but it has been a popular idea in some formal European gardens.