Office of Personnel Management employees in Washington will get a treat later this week: an hour off to view the cherry blossoms and squeeze in a little exercise. OPM Director John Berry issued a memo March 26 to the nearly 1,500 employees at the agency’s Washington headquarters granting them an hour off from April 1 to 4 to walk down to the Tidal Basin and see the blossoms. Those four days will be the blossoms’ peak blooming days. Berry has made promoting wellness initiatives and encouraging federal employees to be healthier a major part of his agenda. This excused absence…