Production of floral crops is easily influenced by rainfall, strong wind, improper temperature and abnormal weather, resulting in impaired floral quality in the open field. Thus, the protecting facilities in producing high quality products are of great demand in floral industry. Although the flower production under structure is less influenced by improper climatic factors such as heavy rainfall and strong wind, but the ”greenhouse effect” and the resulted global warming trend still make flower production under structure facing a more difficult situation. The global warming trend will affect not only land use and facilities management but also crop physiology, pest and disease control, water distribution and energy consumption of floral industry in Taiwan.