Introduction to tropical and subtropical plant greenhouses: There are two tropical and subtropical plant greenhouses, each covering an area of ​​more than 1,000 square meters. The greenhouse is a home specially built by Xi'an Botanical Garden for some southern plants that are sensitive to cold to make up for the shortcomings of the continental climate. The exhibition greenhouse is divided into high-temperature exhibition room, medium-temperature exhibition room and low-temperature exhibition room, and more than 400 species of plants are collected and preserved.