The woodland phloxes bring the heavenly scents of spring, and the fireflies bring the sparkling lights of summer. Even in the depths of winter, cardinals, white-throated sparrows, northern flickers, mourning doves and squirrels bring all the music and entertainment we could ever need—right in front...

The house next door sits vacant, placed on the market after the last renter moved out. A succession of owners has knocked down walls, replaced carpeting and installed standard-issue appliances. Edging the exterior are shrubs from conventional landscaping palettes, including invasive species that...