Maintenance
Mowing, edging, trimming, weeding, cleanups and four seasonal fertilizer applications on a 12-month program. The monthly rate stays the same in winter and in leaf season.
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Census survey data show nearly half of Happy Valley's homes were built in 2010 or later. Maybe your yard is the one the builder left: sod out front and a bare slope out back. Or the backyard is a mud pit from November to April. Either way, it needs a real landscape, planned for the hill and the wet season.
Green Tree Landscape and Maintenance is a landscaping company serving Tualatin and the Portland metro's south and west side. Happy Valley is part of our service area, and we put in new landscapes for builder-grade yards here. We also build paver patios, retaining walls, cedar fences and French drains, and we keep yards up all year. Call or text (971) 772-9892, and we will look at the yard and put the quote in writing.
Tell us about the yard, the project or the maintenance you need and where it is. We look at the yard and put the quote in writing.
Happy Valley has grown fast. Portland State University estimates the city went from 23,739 people in 2020 to 28,291 in 2025. The city counts itself among the fastest-growing cities in Oregon. It is now planning a new Main Street on Scouters Mountain Road, east of SE 172nd Avenue.
About 7 in 10 homes here were built in 2000 or later, and most are single-family houses. Developments like Taralon and Jackson Hills were built with their own open space and trails.
Building a house can strip or bury the topsoil. OSU Extension says the subsoil left behind is low in organic matter and slow to take in water and roots. Its advice is to mix organic matter into the existing soil, then add topsoil where it helps most. So a new landscape starts with the soil, before the first plant goes in.
USDA soil maps show two silty soils under most of Happy Valley. Cascade silt loam covers more than half the city, and Powell silt loam about a fifth. Both have a dense, brittle layer called a fragipan, about 15 to 30 inches down. In winter, water perches on top of that layer, so a lawn can stay soggy until spring.
On a slope, that water moves downhill to the low side of the yard. More than a quarter of the city is mapped on slopes of 15 percent or steeper. Wet ground is part of the landscape here: Happy Valley Park alone holds 24 acres of wetlands.
A French drain on the low side of a yard can catch that water and carry it off. Downspout drain lines and regrading often handle the rest. WES, Clackamas County's Water Environment Services, runs the storm sewers here under an agreement with the city. A new storm connection needs approval, and a dry well may drain slowly in soils like these.
On a hillside lot, terraced retaining walls turn a steep bank into level ground for a lawn or patio. When walls step up a slope, Happy Valley's code sets the spacing. The gap between two walls must be at least as wide as the lower wall is tall.
A wall under 4 feet usually needs no permit in Happy Valley. From 4 feet up, the city requires a permit. Near homes, the code generally caps each wall at 8 feet, measured on its downhill face. If the lowest wall is visible from the next lot, the code calls for plants that screen its whole face.
Some hillside lots also fall in the city's Steep Slopes Development Overlay, which has its own rules. The city requires an erosion control permit when work disturbs more than 500 square feet of ground. A full backyard redo can pass that line. The permit question is settled before work starts.
A new landscape still needs care every month of the year. Our 12-month maintenance program covers mowing, edging, trimming, cleanups, four seasonal lawn fertilizer applications and weeding. The monthly rate stays flat, so winter and leaf season cost the same.
Happy Valley holds homeowners responsible for the street trees in their planter strips. Limbs must clear sidewalks by 7 feet and residential streets by 11 feet. Taking out a yard tree with a trunk over 6 inches across needs a Type A permit. Our trimming covers shrubs and small trees below six feet, and taller work is quoted separately.
Tualatin sits at the center of our service area. Happy Valley is about 19 miles from Tualatin by I-205 and SE Sunnyside Road.
Communities and areas we serve around Happy Valley: Scouters Mountain, Mount Talbert, Mount Scott Creek Trail, Taralon, Jackson Hills, Rock Creek Meadows, Happy Valley Park, Hidden Falls Nature Park, SE Sunnyside Road, SE 172nd Avenue, SE King Road.
Happy Valley ZIP codes served: 97086, 97015, 97089.
Happy Valley is part of our service area. We look at the yard and put the quote in writing.
(971) 772-9892 Mowing, edging, trimming, weeding, cleanups and four seasonal fertilizer applications on a 12-month program. The monthly rate stays the same in winter and in leaf season.
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New landscapes and full yard makeovers with planting beds, shrubs, trees, bark dust and rock. We plan the layout with you and put the quote in writing.
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Paver patios, walkways, steps and flagstone paths set on a compacted gravel base. Each patio slopes away from the house so rain runs off.
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Segmental block retaining walls and terraced walls for sloped lots around Tualatin, with block steps where a path climbs. Each wall sits on a compacted gravel base with drainage gravel behind it.
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New automatic sprinkler systems for lawns and drip lines for planting beds, planned zone by zone. Every system runs from a controller and starts at a backflow assembly.
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We strip the old lawn and lay new sod on prepared soil for homes around Tualatin. For a thin lawn, overseeding or a lawn renovation is the smaller fix.
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Artificial turf lawns for backyards, side yards, play areas and dog runs, laid on a compacted rock base that drains. Turf stays green in the shade and through the dry summer.
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Low-voltage LED landscape lighting for walkways, steps, trees and walls across the south and west metro. We add lights to a finished yard or build them into a new patio or wall.
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Cedar privacy fences with vertical boards or horizontal slats, and gates to match. We also repair leaning fences and replace rotted posts.
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French drains and catch basins for yards that stay soggy from November to April. Downspout drain lines and regrading send water away from the house.
Learn MoreReal reviews of our maintenance, sod, sprinkler, patio and fence work, 15 reviews on Google.
Carlos and team did a great job on our new paver patio and pathway. Communication was excellent and responses were quick. He shared examples of options and asked questions along the way to make sure we were getting what we wanted. We'll use them again for future projects without hesitation.
We had a great experience working with Carlos and his team. Carlos was professional, reliable, and easy to communicate with throughout the entire project. His pricing was very reasonable, and I really appreciated his attention to detail. He took the time to make sure the grading and sod installation were done correctly rather than rushing through the job. It’s clear Carlos takes pride in his work and cares about doing things well. We would absolutely hire him again and highly recommend him to anyone looking for landscaping or yard work.
He was very good. Review our system and did an upgrade. Checked all sprayer heads and adjusted as needed. He was very professional and efficient. Great job. Would recommend he to anyone who has a sprinkler issue.
Excellent service by thorough, competent people for the past several years.
Our yard was a mess and Green Tree made it beautiful for us. They cleaned up the back yard and laid sod. That was an amazing transformation and the grass is still gorgeous. In the front yard they dismantled an aging pathway I put in years ago and replaced it with large stone and some kind of filler in any gaps so weeds don't grow. it's perfectly angled for water run off. It looks beautiful and every time see it I'm thrilled with the quality of work.
Our experience with Green Tree has been very satisfactory they are predictable consistent and we believe we get a real value for our investments we've done business with them for many years and they have consistently met our needs
A few of the questions we hear most around Happy Valley. If yours is not here, call or text and ask.
Tell us what the yard needs and which town it is in, and text us photos if you have them. Call or text (971) 772-9892 or use the form, and we will get back to you.
Tell us about the yard, the project or the maintenance you need and where it is. We look at the yard and put the quote in writing.