Diana Bahr of Bowie takes a dozen people on a tour of her world. At her home in the 12500 block of Kingsfield Lane, Bahr gives a house tour that doesn’t focus on a pool or a verdant lawn but on her rain barrels, native plantings and the future site of her rain garden. At a planting of service berries, she tells of how the plant’s green berries, much like her front and back yards, can accommodate the needs of both people and wildlife.