Garden room
In gardening, a garden room is a secluded and partly enclosed space within a garden that creates a room-like effect. Such spaces have been part of garden design for centuries. Generally they are regarded as different from terraces and patios just outside a building, although in practice these are often the parts of a garden that are most used as a room, with tables and chairs. Walls and hedges may form part of the boundaries of a garden room, but plants, usually at least a few feet tall, will do as well. Apart from the entrances to the room, these should normally enclose the space. There may be furniture, especially for sitting down, but this is not essential.
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