Chapter 18.50 LANDSCAPING AND SCREENING This chapter is included in your selections. Sections: 18.50.010 Intent. 18.50.020 Applicability. 18.50.030 Repealed. 18.50.040 Landscape development standards. 18.50.045 Preservation of significant trees. 18.50.050 Repealed. 18.50.060 Landscaping plan requirements. 18.50.070 Administration and enforcement. 18.50.080 Alternative landscaping plan.