Airspading is aÂ new method of excavating the roots of a tree using a “gun” called an airspade, or airknife and a compressor.Â The dirt is blown off the roots of the tree, making it lighter and easier to move.Â Unlike traditional methods, airspading captures 80-90% of the roots without a heavy root-ball. More roots for the tree mean a healthier transplant. With new construction projects at the Perkins School in Watertown, Massachusetts, many large trees are being transplanted with this technique. Observe the various parts of the transplanting process, hear about the rationale for and the operation of the airspade, and then visit trees that have been transplanted with this technique to observe their overall health. The program, to be held Saturday, June 26 from 10 – 2, is sponsored by The New England Wild Flower Society and will be taught by Sonia Baerhuk.Â Register on line at www.newfs.org.Â Fee: $ 32 for NEWFS members, $ 36 for nonmembers.