About Diaz Landscape Design Yamil Diaz had a passion for working outdoors. So with a single pickup truck he started his business cutting grass. After attending classes at Rutgers and learning about trees and horticulture Yamil soon expanded his business to tree removal and other landscaping services. The business has been growing from there. Diaz Tree is a family affair. Yamil's wife Marivel help's with the business by working in the office.