Bunny Williams decorates the room outside her house with the same care and vision that uses for the spaces inside. From every room of her 18th-century manor house in Litchfield County, Connecticut, the noted interior designer’s garden “rooms” are visible. She takes readers along her parterres, inside her conservatory, through her vegetable gardens and fruit orchards, deep into the woodlands, and into her Greek Revival–style folly, which is positioned near her pool. She shows us not only what grows outside, but how to use some of those elements indoors. A rescued bird’s nest, for instance, assumes an importance in a room akin to a treasured object. That alone reveals her talents and her eye as a designer.