For nearly 40 years, this couple has been turning their Berwyn property into one of the most beautiful private gardens in the region, writes Sally A. Downey for The Philadelphia Inquirer.
When Bonnie and Bob Dettore bought their Chester County home in 1987, it was dominated by old-growth trees, bare ground, and almost no natural light.
“The house was dark and damp all the time,” said Bonnie. “There was no sun,” Bob added…