"Pleaching creates an effect of a living arch or tunnel," says Don Burke, creator of a Web site on Australian landscape design. Since he used golden chain trees (Laburnum) as an example in his discussion on pleaching, he really caught my attention: it is one of my favorite trees! The basic idea is that you grow a row of the selected plant on either side of a walkway. Over time, you intertwine their top branches (across the walkway).
As my picture of a Laburnum tree shows, the plant veritably drips with luxurious, golden racemes when in bloom (thus the common name of "golden chains" for Laburnum trees), making them an ideal candidate for such a project.
Read article: Golden Chain Trees
Photo ©2006 David Beaulieu (licensed to About, Inc.)