KNOX TREE & SHRUB SERVICE based in Washington and cover all areas. KNOX TREE & SHRUB SERVICE has been working throughout the Washington state for many years and has many years of experience working in Landscaping Services. KNOX TREE & SHRUB SERVICE offer a full Landscaping Services. The Staff have expert Landscaping Services skills, which enable them to carry out minor to major Landscaping Services projects. Formed in 1989 , KNOX TREE & SHRUB SERVICE specializes in Landscaping Services.