Commitment, Quality and Service are the roots of our business

Denison Landscaping example Denison is one of the Washington, DC / Baltimore, Maryland Metro area's largest landscape contractors. A family owned corporation since 1973- Denison Landscaping is celebrating it's 40th year in business.

Denison Landscaping has the experience, expert personnel, and equipment to handle all of your commercial or residential landscaping needs. In addition to design/build capabilities for landscaping, we also offer design/build irrigation, lighting, hardscapes, drainage, erosion control, maintenance, snow removal, and a full service garden center.

Top 100 Landscape Company by Lawn & Landscape magazine

Denison Landscaping was once again named a Top 100 Landscape Company in 2014 by Lawn & Landscape magazine.

Denison Way seal

When You Hire Denison- You Get Denison!

When you hire Denison Landscaping you will have peace of mind in knowing that only Denison employees will be working on your project. Unlike many of our competitors, we do not bid out your project to the lowest bidder. This means that you will always have the quality and service that has made Denison Landscaping a one-of-a-kind company for 40 years. It’s always been that way and it will always stay that way. That is the “One Company, One Family Guarantee”.


Why Choose Denison Landscaping?

The Denison Group prides itself on a History of Leadership as a full service provider in the landscaping industry.  We believe in building and keeping productive relationships with our customers by making every effort a team effort.  Our team sees every day as a new opportunity to deliver the best because our reputation demands the best. 


Denison in the community: Good Shepherd Housing Foundation

Denison Landscaping in cooperation with the NHLA (National Hispanic Landscape Association) and RulyScapes, Alexandria Lawn Services, Epling Landscaping and Lawn Services, and Ruppert Landscape are designing and executing a landscaping makeover for a home for the mentally disabled run by the Good Shepherd Housing Foundation, a non-profit charitable endeavor.

By improving the grounds of one Good Shepherd home in Woodbridge, VA on the 22nd of April, we are working to create more pleasant, safe, healthy, and usable outdoor space for residents and staff, and assist the Good Shepherd Housing Foundation with an important demonstration project that they can use as a showcase in kicking off a new capital campaign on May 6 to raise the funds needed to rehabilitate all their buildings and grounds.


Celebrating 40 Years!

John Denison found that a way to make money to pay for college became a passion. He had a pickup truck named “Chuck” and a mower.

“He decided landscaping was the thing for him,” says Josh Denison, operations and human resources manager for the Ft. Washington, Md.-based operation and the son of the company founder. “His second year cutting grass, he had a customer ask him to plant some azaleas. He decided, ‘I like this planting stuff more than I like this maintenance stuff.’”

Four decades later the company has more than 250 trucks on the road, trucks that drove a combined 24 million miles last year. Employees laid 18,197,000 square feet of sod.

Denison Landscaping has big plans to celebrate its anniversary. The company will complete 40 green initiatives that range from efficiency savings to community service. Read the full article from Landscape Management magazine

Denison's 40 year milestone was also featured in US Builders Review.  Here is a snippet...
What started out as a three-man operation has blossomed into a full-fledged landscaping company. “Today, during peak season we employ anywhere from 400 to 470 individuals,” shares Josh Denison, operations manager at Denison. “We have offices in Pittsburgh and additional branch locations in Delmar, Del. We operate throughout the Mid-Atlantic in all phases and facets of what we do from commercial installation to residential design-build and snow removal.” Read the full article in US Builders Review.