TUCSON, Ariz.--(BUSINESS WIRE)--Westhook Capital (“Westhook”), a Los Angeles-based private equity firm, today announced it has made an investment in Santa Rita Landscaping (“Santa Rita”), a leading provider of commercial landscaping services in Tucson, Arizona. The Company will continue to be led by Tanner Spross and Kathi Roche, who will remain in their positions as CEO and CFO, respectively. Santa Rita ranks #114 in Landscape Management’s Top 150. Its services include the design, installation and maintenance of commercial landscape.