Lake Oswego Landscaping Services

Let us transform your Lake Oswego yard into an inspiring landscape designed for your unique needs and space. Get started today with a FREE consultation from one of our experienced Landscape Designers.

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Landscape Designers, Installers & Landscape Maintenance in Lake Oswego, Oregon

Dennis’ 7 Dees is a full-service Lake Oswego landscaping company with six decades of experience creating beautiful landscapes that cater to the specific needs and goals of our clients. From small renovations for curb appeal to complete landscape makeovers and expert year-round maintenance, we’ve won numerous national awards for our work of all sizes throughout Lake Oswego and nea by West Linn.

We’re Lake Oswego Landscapers Offering Award-Winning Landscape Design & Build and Landscape Maintenance

We have multiple award-winning landscapes throughout Lake Oswego—we create inspiring landscapes that fit any size of yard or type of terrain. Whether you reside on a lot near the lake or a sloping gem nearby, our landscape designers can make the most of any plot in Lake Oswego and the surrounding neighborhoods.

From complete landscape renovations and luxury outdoor living spaces to landscape maintenance and irrigation, our full-service design-build-maintain team creates beautiful landscapes tailored to the way Lake Oswego and West Linn homeowners live and entertain.

portland home with paver path and water feature

Creating Exceptional Outdoor Living in Lake Oswego

Lake Oswego is known for its mature landscapes, established neighborhoods, and spaces designed for outdoor living. Our landscape designers create custom environments that respect existing trees, enhance privacy, solve grading and drainage challenges on sloped properties, and seamlessly integrate patios, outdoor kitchens, fire features, landscape lighting, pools, and gardens into one cohesive design. Whether you're renovating an older landscape or building a new outdoor living space, every project is thoughtfully tailored to your property and lifestyle.

Our professional landscape maintenance crews also understand how to maintain all types of Lake Oswego landscapes, and our team specializes in advanced levels of maintenance and garden care catered to our climate.

beautiful outdoor living area and custom Portland Blazers basketball court
patio area and outdoor kitchen by Dennis' 7 Dees Landscaping

Lake Oswego Landscaping Services

Whether you're planning a complete landscape transformation or updating one area of your property, we provide comprehensive landscaping services including landscape design, patios and hardscapes, retaining walls, irrigation, landscape lighting, planting, drainage improvements, and ongoing landscape maintenance throughout Lake Oswego.

 

Outdoor Living & Kitchens
Patios, Paths & Walls
Water Features & Pools
Fire Pits & Outdoor Fireplaces

Perennials, Shrubs & Trees
Raised Beds & Gardens
Containers & Seasonal Color
Sod & Hydroseed Lawns

Synthetic Turf
Athletic Courts & Golf Greens
Landscape Lighting
Irrigation & Drainage Systems

Creating Exceptional Outdoor Living in Lake Oswego

Lake Oswego is known for its mature landscapes, established neighborhoods, and spaces designed for outdoor living. Our landscape designers create custom environments that respect existing trees, enhance privacy, solve grading and drainage challenges on sloped properties, and seamlessly integrate patios, outdoor kitchens, fire features, landscape lighting, pools, and gardens into one cohesive design. Whether you're renovating an older landscape or building a new outdoor living space, every project is thoughtfully tailored to your property and lifestyle.

Award-Winning Landscapes Every Year Since 1995
outdoor living patio in the evening

We stand out from other Portland landscaping companies with our exceptional quality of work, excellent customer service, decades of experience, and dozens of national awards.

You can trust us to make your landscape dream a reality! Have peace of mind knowing we create custom landscapes to fit your property and lifestyle with the best materials and staff.

Browse our portfolio to see a stunning array of residential landscaping projects we’ve completed over the years, including just some of our award-winning properties highlighted by the National Association of Landscape Professionals (NALP). We’re proud of our team and look forward to bringing your landscaping dreams to life!

What People Are Saying About Us

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Debbie Demmon
June 9, 2026
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FUN & FABULOUS - The before and after photos tell the picture!!!!! We were SO happy with the work that Dennis’ 7 Dees did for us from the design to installation and all the steps in between :) :) :). The attention to detail and thoughtful plant selection and hardscape were huge in making our backyard come to life. And bonus - all of the workers from design to installation were super nice people who worked really hard and wanted us to be extremely happy with the end product :) :) :). Mission Accomplished - We LOVE Our Yard ❤️.
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K. Zolnoski
May 21, 2026
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I needed some old rotten rail ties removed from a small retaining wall and I wanted hardscape installed so the yard was secure and I wouldn’t have to replace the retaining wall again any time soon. They cleared a lot of stuff overgrown roses and installed a 4’ wall without damaging my fence. They did an excellent job. The wall has drainage. It’s gorgeous and they tied it into a front retaining wall that was already there and made the whole thing look beautiful and matching. They asked questions about what exactly I wanted and were friendly and professional. 10/10 would hire again.
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Tina Das
May 9, 2026
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From beginning to end, the whole process of designing and installing the backyard was a very pleasant experience! Very professional and friendly crew! We can finally enjoy our backyard!! Highly recommend!
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Marcia Menche
May 8, 2026
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When I stated what type of retaining wall I wanted Eric was very agreeable and stated sure no problem. It was a perfect match. Plant landscaping was beautiful. When there was a slight mistake it was fixed right away with no hesitation. Overall experience was top notch. Highly recommend them.
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Kaitlin Hansen
May 7, 2026
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I can't say enough great things about Eric at Dennis' 7 Dees. We worked together on a landscape design and installation project, redoing our large front yard and entry walkway area. From start to finish, he was an absolute joy to work with. Eric brings a rare combination of deep plant knowledge and genuine creativity! He really understood our vision and helped shape it into something even better than we imagined. What impressed me most was how patient, thorough, and detail-oriented he was throughout the entire process. He listened carefully, adapted when our ideas evolved, and offered thoughtful recommendations with real clarity and confidence. I could tell he genuinely cared about the outcome. The project turned out beautifully, and we owe it all to Eric's expertise, clarity of vision, and his warm, personable approach. He truly went above and beyond. Highly recommend!
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J B
May 5, 2026
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Kenna, Artemio and his team were amazing and the new landscaping project looks amazing! Driveway removal, new rock wall and edging plus all the plantings. Professional, clean, communicated well, and a few minor adjustments were easily agreed upon and accomplished. We’ve used 7dees for work in the past and have again been satisfied with their work. Recommend.
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Libby Davis
April 30, 2026
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Ismael and Mariano did a great protecting existing grass while they worked and cleaned everything up nicely when done. They were very nice and polite! Thanks you!

Our Landscape Design/Build Process in Lake Oswego & West Linn

STEP 1: Consultation

Discover Your Vision: First, we’ll connect you with one of our talented landscape designers who will get to know you and your outdoor space. Together, you’ll discuss your goals, how you intend to use your new landscape, and any concerns you may have.

STEP 2: Concept & Design

Bringing Your Vision to Life: We explore creative landscape possibilities while keeping your budget and any local regulations in mind. We also evaluate grading, drainage, mature trees, privacy, and how you'd like to use your outdoor spaces for entertaining and everyday living. Then, we craft a custom design for your review and refinement—once approved, your project is scheduled for installation!

STEP 3: Construction

From Concept to Reality: Watch your landscape transform as our expert installation teams bring your design to fruition. We pride ourselves on precision, cleanliness, safety, and respectful crews who treat your property as their own.

STEP 4: Maintenance

Protect Your Investment: Your new landscape comes with a warranty and the option for ongoing care. Our skilled maintenance teams can ensure your outdoor space thrives year-round, keeping it beautiful, healthy, and worry-free!

Dennis' 7 Dees Landscape Designer Eric Hagberg and Emily Henderson reviewing a backyard renovation landscape plan

Why Choose Dees for Your Landscape?

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Turnkey Process

Enjoy a fluid experience with seamless communication. Details won’t get lost in translation as they can with multiple contractors. From design to installation, we handle all the details—sourcing materials, securing expert and reliable subcontractors, and ensuring your landscape is just how you envisioned.

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Ample Resources

Increased buying power and economy of scale help us keep costs reasonable, offer extensive options, and minimize supply chain issues. Our longstanding position in the community and in the landscaping industry has allowed us to establish strong relationships with the best suppliers in the market.

Livability & Aesthetics

Protected Investment

After installation, we provide a warranty on your plants and hardscapes to protect your investment. Our knowledgeable landscape maintenance team also makes it easy for you to keep your landscape thriving through each season and for many years to come.

Landscaping Tips & Inspiration 

Fall Lawn Care: The Best Time to Renovate Your Lawn

Fall is the perfect time to build a thicker, greener, more resilient lawn. After a dry, hot Summer and a season of constant use, lawns are often worn, thin, and compacted by the time Autumn comes around. Left unattended, thin, compacted lawns will...

Landscape Project Spotlight: A Serene PNW Retreat with Mediterranean Influences

Whether swimming in the pool, grabbing ingredients from the raised garden beds, enjoying views of the lush plantings, or entertaining family and friends in their outdoor living spaces, this award-winning custom landscape provides a serene and...

Plants for Fall Color: Design Ideas for a Brilliant Autumn Landscape

Manifest the splendor of Autumn with a stunning display of colorful Fall leaves, right in your own backyard! Ah, Fall… the time of pumpkin spice, sweater weather, soup season, and our favorite—colorful foliage. Watching the leaves transform from...

7 Best Coastal Plants for Pacific Northwest Gardens

The scenic coastline of Oregon and Washington is home to breathtaking views, sandy beaches, and a fantastic range of native plants. It’s no secret that the conditions that create such beauty up and down the Pacific Northwest Coast are the same...

Before & After: Backyard Transformations to Inspire You

We’re consistently inspired by how our designers and crews work with our clients to transform vacant or underused spaces into beautiful, functional landscapes. Some of our favorite Portland Metro area projects highlight just what elevating outdoor...

12 Fantastic Trees Under 20 Feet Tall

Trees provide structure, scale, and a natural focal point—often becoming the tallest and most defining element in a landscape. While many trees grow to towering heights, there are plenty of beautiful trees under 20 feet tall that are perfectly...

Project Spotlight: Emily Henderson’s Backyard Renovation

When Emily Henderson, renowned designer and Portland resident, was interested in updating her home landscape, we leapt at the opportunity to co-create a vision for her backyard renovation. Our goal was to create a flowerful outdoor space that the...

7 Benefits of Adding a Water Feature to Your Landscape

From small-space bubblers and fountains to large-scale ponds, streams, and waterfalls, custom water features can become the focal point of any yard. Along with being visually appealing, water features add a sense of tranquility to outdoor...

How to Design the Perfect Cottage Garden

Cottage Gardens are easeful, bountiful spaces where abundant blooms intermingle to engage the senses and create the perfect retreat for plant lovers. Aligning utility and beauty in a way that is instantly recognizable, Cottage Gardens are a love...

The 7 Best Hummingbird Plants for the Garden

Hummingbirds are by far the most charismatic and sought-after garden visitor. Whirring jewels that glimmer in the sunlight, hummingbirds bring delight whenever they stop by to sip nectar from homegrown plants. Whether hovering silently mid-air to...

Why Should You Invest in Landscape Design?

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A Healthier Environment

Create more resilient, eco-friendly outdoor spaces:

  • Clean air and natural temperature regulation
  • Reduced erosion, runoff, and soil degradation
  • Thoughtful plant selection supports local wildlife and biodiversity

 

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Financial Value

Investing in professional landscape design pays off:

  • Boosts home value and attracts prospective buyers
  • Maximizes usable outdoor space for extra living area
  • Can reduce water, energy, and maintenance costs
  • Can prevent costly water and erosion damage

 

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    A Safer Space for Your Family

    Strategic landscaping can improve safety and comfort:

    • Pathways and natural barriers enhance security and reduce hazards
    • Trees and shade structures protect from harsh sun
    • Proper lighting improves nighttime visibility

     

      Livability & Aesthetics

      Beautiful, Livable Outdoor Spaces

      Transform your home into a relaxing, functional retreat:

      • Enhances curb appeal
      • Increases privacy and buffers neighborhood noise
      • Creates practical spaces for entertaining and relaxing
      • Reflects your style and thrives all year round