In landscape design, what term describes the outdoor ceiling formed by trees in an outdoor room?

• A. Canopy
• B. Trellis
• C. Arch
• D. Pergola

Answer: (A)

The term canopy describes the overhead cover created by tree crowns that forms the ceiling of an outdoor room. In landscape design, visualizing the space as a room helps plan how light, shade, and privacy are managed, and a mature, leafy canopy provides that continuous shade layer overhead, making the area feel enclosed and defined.

Trellis is a man-made framework for supporting climbing plants, shaping the space with a lattice rather than natural tree cover. An arch is a curved architectural element marking an entry or focal point, not a ceiling. A pergola is a constructed structure with an open roof of beams, often used for defined pathways or seating areas, but it is built rather than formed by trees above.