The owner of the structure, or his manager or agent, shall be responsible for the irrigation of all landscaping and plant materials, utilizing one or a combination of the following methods: a. an automatic underground irrigation system (conventional spray, bubbler, and the like); b. an automatic water-saving irrigation system (drip, porous pipe, leaky pipe, and the like); or, c. a hose attachment within one hundred (100) feet of all required landscaping and plant materials.