Sam Van Aken, an artist and professor at Syracuse University, uses "chip
grafting" to create trees that each bear 40 different varieties of
stone fruits, or fruits with pits. The grafting process involves slicing
a bit of a branch with a bud from a tree of one of the varieties and
inserting it into a slit in a branch on the "working tree," then
wrapping the wound with tape until it heals and the bud starts to grow
into a new branch. Over several years he adds slices of branches from
other varieties to the working tree. In the spring the "Tree of 40
Fruit" has blossoms in many hues of pink and purple, and in the summer
it begins to bear the fruits in sequence - Van Aken says it's both a work
of art and a time line of the varieties' blossoming and fruiting. He's
created more than a dozen of the trees that have been planted at sites
such as museums around the U.S., which he sees as a way to spread
diversity on a small scale.
