Seattle's Premier Landscape Architect
TransformingSeattle'sOutdoors
Diego Herrera brings 16 years of licensed landscape architecture to every yard — blending Pacific Northwest ecology with bold tropical design.
What We Do
CompleteLandscapeServices
From initial design to ongoing seasonal care, Cascade Landscapes handles every element of your outdoor space. Click any service to learn more.
Custom design from site analysis to 3D concept — blending Pacific Northwest ecology with bold, artful composition.
The Cascade Promise
WhyHomeownersTrustUs
Licensed Architect
Diego is a WALP-certified licensed landscape architect — not a mow-and-go crew with a truck.
Custom Designs
Every project gets original 3D concept renderings tailored to your property, taste, and budget.
Eco-First Approach
Native plants, organic soil, water conservation — landscapes that are beautiful and responsible.
1-Year Warranty
Every plant and installation backed by a full one-year guarantee. If it does not thrive, we replace it.
How We Work
OurDesignProcess
Site Visit & Vision
We walk your property together, listen to your goals, assess soil and sun, and capture measurements.
Concept Design
Diego creates a detailed concept with 3D renderings, plant palettes, material selections, and a phased budget.
Plant Selection
We hand-pick every plant for your site conditions — native species, seasonal color, texture, and mature size.
Expert Installation
Our certified crews build with precision — proper grading, soil prep, irrigation ties, and clean workmanship.
Ongoing Care
Maintenance programs keep your investment thriving season after season. We are partners for the long haul.
Meet Your Designer
DiegoHerrera
Born in Medellín and raised in Seattle, Diego brings a rare tropical design sensibility to Pacific Northwest landscapes. His Colombian roots inspire bold color palettes and lush layering that stand out against the evergreen backdrop of the Puget Sound.
With 16 years of licensed landscape architecture, a WALP certification, and a deep commitment to sustainable design, Diego has transformed over 500 Seattle-area yards into living works of art.
Our Work
ProjectPortfolio
Cottage Garden Retreat
Capitol Hill
Birdhouse, native flowers, bamboo trellis, bordered beds
Modern Patio
Bellevue
600 sq ft paver patio, fire pit, built-in seating
Native Plant Restoration
Magnolia
Full yard native conversion, pollinator garden, rain garden
Outdoor Kitchen
Mercer Island
Built-in grill, bar counter, pergola, landscape lighting
Curbside Garden Restoration
Fremont
Drought-tolerant plantings, mulched beds, picket border, downspout redirect
Fire Pit Lounge
Kirkland
Natural stone fire pit, curved seating wall, accent lighting
Year-Round Partnership
SeasonalServices
Spring
- New plantings & mulching
- Soil amendment & fertilization
- Irrigation activation
- Lawn dethatching
Summer
- Irrigation monitoring & adjustment
- Weekly lawn maintenance
- Pest & disease management
- Deadheading & shaping
Fall
- Leaf removal & cleanup
- Aeration & overseeding
- Fall bulb planting
- Irrigation winterization
Winter
- Structural pruning
- Design planning for spring
- Hardscape repairs
- Holiday lighting install
What Does Your Yard Need?
Select the option that best describes your situation.
Transparent Pricing
WhatProjectsCost
Weekly Lawn Care
- Mowing & edging
- Blowing & cleanup
- Seasonal fertilization
- Weed management
Landscape Design
- Site analysis & vision
- 3D concept renderings
- Full plant palette
- Installation blueprint
Full Yard Makeover
- Complete design & build
- Hardscaping included
- Irrigation & lighting
- 1-year plant warranty
Earth-First Landscaping
SustainablebyDesign
Every Cascade project starts with the planet in mind. Diego integrates native species, water-saving technology, and organic soil practices into every design — creating landscapes that are beautiful today and resilient for generations.
Native Plants
Pacific Northwest species that thrive naturally — less water, zero pesticides, maximum beauty.
Water Conservation
Smart irrigation, rain gardens, and permeable surfaces that reduce water use by up to 50%.
Organic Methods
No synthetic fertilizers or harmful chemicals. Healthy soil biology builds a self-sustaining landscape.
Pollinator Gardens
Designed habitats for bees, butterflies, and hummingbirds — supporting local biodiversity.
Storm Damage? We Respond Fast.
Emergency tree removal and landscape repair for existing clients within 24 hours. New clients welcome for urgent situations.
Client Stories
WhatHomeownersSay
Diego turned our mud pit into a Japanese garden. The neighbors stop to take photos every time they walk by.
Our backyard is now the reason we don't go on vacation. Why leave paradise?
The native plant rain garden handles all our runoff AND looks beautiful year-round.
From bare dirt to outdoor kitchen with dining for 12. Diego is a magician.
We hired 3 landscapers before Diego. He's the only one who actually DESIGNED something.
Why Cascade
CascadevsMow-and-GoServices
| Feature | Cascade | Others |
|---|---|---|
| Licensed Landscape Architect | ||
| Custom 3D Design Renderings | ||
| Native Plant Expertise | ||
| Irrigation Engineering | Sometimes | |
| Year-Round Maintenance Plans | Limited | |
| Eco-Friendly / Sustainable Methods | ||
| Project Warranty | Varies |
See Our Transformations
Watch Diego and the team bring yards to life
Get Started
FreeDesignConsultation
Ready to transform your outdoor space? Diego personally visits every property for a no-obligation design consultation.
Phone
(206) 555-0642Hours
Mon-Fri 7am-6pm | Sat 8am-4pm
Request Your Free Consultation
Where We Work
ServingGreaterSeattle
Coverage Area
Seattle, Bellevue, Kirkland, Mercer Island, Redmond, Issaquah, Sammamish, Woodinville, and surrounding communities within 30 miles.
Response Time
Free consultations typically scheduled within 3-5 business days. Emergency tree and storm damage response within 24 hours for existing clients.
Availability
Mon-Fri 7am-6pm | Sat 8am-4pm
Common Questions