Cold frame and Patio

Cold frame noun - Protective covering consisting of a wooden frame with a glass top in which small plants are protected from the cold.

Patio and cold frame are semantically related. in flowers topic. In some cases you can use "Patio" instead a noun phrase "Cold frame".

Patio noun - An open space wholly or partly enclosed (as by buildings or walls).

Cold frame and patio are semantically related. You can use "Cold frame" instead a noun "Patio".