Florentino Landscaping LLC serves the full breadth of King County, WA, from the saltwater edge of Puget Sound to the timbered benches climbing toward the Cascades. Our crews dispatch from the Seattle metro hub and reach most communities in 20–45 minutes, running the I-5 and I-405 spines to jobs in the city core, the Eastside, and the Green River Valley on the same day.
Because landscaping king county WA covers such varied ground, we scope every visit around the neighborhood in front of us. A downtown Seattle courtyard, a Sammamish plateau acre, and a Federal Way conifer lot each demand different equipment and timing, and our route planning keeps a licensed, insured team close enough to respond quickly no matter which corridor your property sits on.
King County yards: soil, slope & climate
The county is built on glacial till left by the Vashon ice sheet, a dense hardpan that perches water near the surface and drowns roots after the region's heavy autumn and winter rainfall. Over that till sits a thin, acidic topsoil that favors moss over turf wherever shade and compaction take hold, which is most of the shaded lots north and east of the city.
Topography swings from flat river valleys to bluffs and ravines that fall away toward Lake Washington and the Sound. We read each site's slope, aspect, and drainage before recommending work, then combine engineered swales, curtain drains, and terraced retaining walls to move water off the property and hold soil in place through the wet season.
Landscaping built around King County
We work the whole county every week, from properties off I-405 near the Eastside employment centers to hillside homes above the Green River Valley. On a sloped lot near the Cascade foothills, we recently tiered a failing bank with boulder rockeries and a gravel-backed curtain drain, turning an eroding slope into usable terraced garden beds.
Our teams also handle post-storm work along the wooded corridors flanking Lake Washington, clearing downed limbs and re-establishing drainage after saturated ground gives way. We do not invent names or reviews; we simply show up, document the site, and leave a written scope so King County homeowners and property managers know exactly what was done and why.
Interstate 5Interstate 405Lake Washingtonthe Green River Valleythe Cascade foothills
Our most-requested services in King County
Lawn Care & Maintenance
Consistent mowing and seasonal care that keeps PNW lawns thick, green, and moss-free.
Retaining Wall & Rockery Construction
Engineered walls and rockeries that hold Seattle's slopes and end erosion for good.
French Drain & Yard Drainage Solutions
Permanent drainage systems that dry out soggy PNW lawns and protect your foundation.
24/7 Emergency Storm Damage Cleanup
Round-the-clock crews clearing storm wreckage and hazards fast after PNW windstorms.
Landscaping projects we take on in King County
Across King County our project list runs the gamut the county's geography forces on it. In the Green River Valley we cut drainage swales and set catch basins to pull water off flat, poorly draining ground, while on the benches climbing toward the Cascade foothills we terrace slipping banks with boulder rockeries and gravel-backed retaining walls. Eastside lots off I-405 tend toward hardscape and lawn renovation, and South King County parcels lean on grading and fence lines.
We also take on the recurring work that keeps larger properties in shape: scheduled lawn care and mowing, moss renovation on the shaded lots north and east of Seattle, and downspout tie-ins that route roof water past foundations. When Puget Sound windstorms roll through, our crews handle emergency storm cleanup along the wooded corridors near Lake Washington, clearing downed limbs and reopening blocked drainage before saturated ground gives way and does more damage.
Seasonal landscaping in King County, WA
The county's calendar is dictated by rain. From October through spring, saturated glacial till perches water near the surface, so we spend the wet months clearing swales and curtain drains, scraping moss off shaded turf, and watching slopes for the creep that follows weeks of downpour. The dry stretch from July into September is when we build, excavating retaining walls, trenching drainage, and laying sod on ground firm enough to compact properly. Spring and fall are the aeration and planting windows, when cool, moist soil helps new turf and beds root before the next round of Cascade-fed runoff arrives.
Ready to transform your King County property?
Get a free, no-pressure estimate from a licensed, insured Seattle crew. Same-day and 24/7 emergency service available.
Nearby communities we serve
Based near Seattle, we cover King County and the surrounding area — including Seattle, Bellevue, Renton, Kent, and Shoreline. Not sure if you're in range? Call (323) 606-0255 and we'll confirm.
King County landscaping FAQs
In most unincorporated King County jurisdictions a retaining wall of four feet or less measured from the bottom of the footing, and located outside a critical area, generally does not require a permit. Taller walls, tiered systems, or walls near steep slopes and streams usually do. We verify current requirements with the local building department before we build.
Moss thrives on the county's shade, acidic glacial soils, poor drainage, and compaction. It is a symptom, not the disease. We correct the underlying conditions with aeration, drainage, lime and overseeding rather than just scraping the surface, so healthy turf can outcompete the moss.
We dispatch from the Seattle hub and reach most King County communities in 20 to 45 minutes for storm work. Fallen limbs and blocked drainage get priority, and we run emergency routes during major Puget Sound wind events.
Fall and early spring are ideal. Cool, wet soil helps new plantings establish and lets us grade and trench drainage before the heaviest rains, so systems are proven by the time winter saturation arrives.