Yet this is exactly what I’m learning from Dennis Vroomen, a certified arborist and proprietor of a two-year-old firm called Royal Dutch Tree Services (royaldutchtreeservices.ca, 403-462-9262 ...

The last-known first-generation graft taken from the original McIntosh apple tree died this summer, but not before Ontario horticulturalists took a dozen cuttings in hopes of cloning the plant.

Twelve-year-old Milo Weinberg remembers the apple tree at Cambridge’s Tobin Montessori School like an old friend. He played around its trunk for years. He learned to ride his bike around it. And ...