5 Best Landscaping Companies in Seattle (2026)

Devonshire Landscapes is a West Seattle outfit covering hardscape construction, irrigation, low-voltage lighting, and landscape design, alongside ongoing maintenance and drainage work. The company works almost exclusively in West Seattle, Burien, Normandy Park, and Des Moines, and its site leans on client testimonials tied to specific neighborhoods rather than a broad service-area pitch. Reviewers describe everything from major plant and hardscape installs to monthly maintenance and irrigation oversight, suggesting a team built for long-term client relationships rather than one-off jobs.

North East Landscaping & Design, based near the University District, handles landscape design, deck building, paving, and lawn care across a wide swath of the city. Its own site describes soil health, drainage, and microclimate planning as part of every project, from full backyard renovations down to simple layout refreshes. The company also builds paver patios engineered for Seattle's wet climate, with attention to base prep and drainage.

Seattle Sustainable Landscapes builds its identity around eco-friendly design, irrigation systems, and long-term plant health for Seattle-area homeowners. Services span garden renovation, planting design, seasonal cleanups, and irrigation maintenance, with a stated focus on soil health and water movement suited to the Pacific Northwest climate. The company operates out of the Georgetown area and serves homeowners across the city.

Rutheo Designs, based in Ballard, specializes in ecological landscape design, native planting, and habitat-focused garden work, including schematic design, installation, and ongoing stewardship. The company's site lists services from concept planning through fine pruning and eco-package offerings, and it serves a wide area including Bellevue, Redmond, Shoreline, and Mercer Island. Its portfolio includes both residential backyards and larger institutional projects.

Green Garden Landscaping, in north Seattle near Broadview, offers lawn maintenance, garden care, irrigation, and organic fertilizing for residential, commercial, and HOA properties. Reviewers describe long-term maintenance relationships spanning years, alongside cleanup and trimming work for both individual homes and shared community gardens. The company changed ownership at some point, with reviewers noting the new owners kept service quality consistent.