Planting Services That Complete Long Island Landscape Designs

Design That Grows With Time

A landscape isn’t finished when the stone is set, it’s finished when it starts to grow. At Gary Duff Designs, our plantings bring life, movement, and texture to every outdoor space. For fifty years, we’ve shaped Long Island, NY, with landscapes that thrive season after season, balanced, sustainable, and deeply connected to place.

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Layered plantings with trees and shrubs framing a residential landscape in Babylon, NY
Perennial garden beds designed for seasonal color and texture in Port Jefferson, NY

The Art of Living Design

Plantings are never static, they grow, adapt, and age into the landscape. That’s why we design with time in mind. Every selection, placement, and layer is chosen for balance, longevity, and the quiet sophistication that defines a Gary Duff Designs property.

  • Plants that frame the home and define its geometry.

  • Decades of experience working with Long Island’s soil and seasons.

  • Designs that support pollinators and conserve water.

  • Natural beauty that deepens with age.

Rooted in Design. Grown With Intention.

From trees and shrubs that define structure to perennial gardens that evolve with the seasons, every plan reflects your home and the rhythm of the land. Designed for Long Island’s climate, our low-maintenance landscaping grows beautifully year after year.

Our Planting Expertise Includes:

Balanced plantings combining height, color, and form for a cohesive look in Port Jefferson, NY
Gary Duff letters

OUR PROCESS

Our Design Process

A Thoughtful Path to Planting Design & Build

Consult & Discover

01.

We walk your property, discuss style, goals, and maintenance preferences.

02.

Design & Plan

Our team creates detailed planting plans for structure, texture, and color balance.

03.

Install & Nurture

Every tree, shrub, and perennial is installed with precision and care.

04.

Enjoy for Decades

A landscape designed to grow beautifully, settle naturally, and support the way you live outdoors.

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See the Transformation

Before plantings showing a cleared hillside and unfinished landscape area behind the lawn in Babylon, NY
After plantings featuring terraced garden beds, layered shrubs, and stone steps creating structure in Babylon, NY

Where Our Craft Becomes Your Story

“Gary and Adam had great vision and experience which helped when planning one of our biggest projects. I really like how much time they will spend with you planning out everything and offering options. I also appreciated their patience because, let's be honest, we homeowners change our minds a lot! They are trustworthy, reasonable and their crew does excellent and meticulous work.”

“

— Alan H. via Google

Guidance from Gary Duff Designs

Decades of experience have taught us a few things, here’s what most clients want to know before we start.

  • We select every tree, shrub, and perennial based on your home’s architecture, sun exposure, and soil conditions. Our goal is to create landscapes that look cohesive and thrive naturally on Long Island, NY.

  • Yes. Our low-maintenance landscaping uses hardy, sustainable plants that require minimal care while maintaining beauty year-round.

  • Absolutely. Sustainable design is central to our work. We use native and adaptive species that promote biodiversity and long-term landscape health.

  • Yes. We often rejuvenate existing planting beds and gardens, blending old and new elements to refresh the landscape without starting over.

  • Every landscape is unique. The investment depends on your property’s scale, plant selections, and overall design goals. During your consultation, Gary Duff Designs will outline clear options to create a planting plan that fits your vision and grows beautifully over time.

Celebrating 50 Years of design excellence

50 Years of Designing Outdoor Spaces

10,000+ Projects That Transform How People Live.

Enhancing The Quality Of Life Through Landscape Design

For five decades, the Duff family has been redefining outdoor living across Long Island, one purposeful, beautifully built space at a time.

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