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Falls Church is approaching a regional goal of 50% tree-canopy coverage, but city leaders and local advocates warn that continued development—especially in residential neighborhoods—could put its mature trees under increasing pressure.

Mayor Letty Hardi said in her March 21 constituent newsletter that trees cover about 48% of the city. She described that level as unusually high for an urbanizing inner-ring suburb and said it has remained steady.

The figure is close to the Metropolitan Washington Council of Governments’ region-wide target of 50%. Hardi compared Falls Church with canopy estimates of 35% in Arlington, 36% in Alexandria and 43%, 45% and 58% in the Fairfax County districts nearest the city.

That assessment differs from the 32.4% figure included in U.S. News & World Report’s 2024 ranking of Falls Church as “America’s Healthiest Community.” The reason for the gap is unclear. Earlier city analyses found 46% canopy coverage using 2008 and 2011 regional data and again through a review of 2014 satellite imagery.

The health ranking gave Falls Church a perfect score for its natural environment because every resident lives within half a mile of a park. That compares with 31.7% of residents nationwide and 55.2% across Virginia. Education and walkability were also major factors in the ranking.

City considers tougher commercial standards

A majority of city leaders supported establishing a minimum 10% tree-canopy standard for commercial projects developed by right, according to Hardi. That is the maximum Virginia law currently permits.

Hardi also proposed standards for green and open space, including requirements governing how much should be accessible to the public.

By-right commercial construction, however, accounts for only a small portion of Falls Church redevelopment. The conversion of the Stratford Motor Lodge into the Stratford Garden Inn is one example.

Larger mixed-use developments go through the city’s special-exception process, allowing officials to negotiate higher canopy levels. The three most recent projects already exceed 10%: West Falls is planned for 15%, Founders Row 2 for 14% and the Quinn/Homestretch project for 19%. Those developments largely replace pavement and other impervious areas that previously had little tree cover.

Residential construction has affected considerably more land. Commercial and mixed-use projects have touched about 38 acres during the past 20 years, while redevelopment in residential neighborhoods has changed roughly 100 acres.

Falls Church already requires residential projects to reach 20% canopy within 10 years, the strictest standard allowed under state law. The city also adopted canopy requirements of 10% to 20% within 20 years for its T-zones, depending on density. Those areas represent about 3% of the city and previously had no canopy mandate.

Hardi said Falls Church continues to ask state lawmakers for greater authority to regulate tree preservation and replacement.

Volunteers help rebuild the urban forest

The Neighborhood Tree Program, created in 2000, brings together the city, the Village Preservation and Improvement Society and community volunteers. Its members plant street and park trees twice annually while educating residents about the benefits and care of native trees.

Donations help purchase native shade trees for areas near streets and sidewalks. Volunteers plant qualifying trees in the public right-of-way on residential properties, with logistical help from city tree specialists and no charge to the property owner.

The program also distributes native saplings to residents without enough right-of-way space for a street tree. Those residents plant the saplings elsewhere on their properties, contributing to the community’s shared canopy.

To qualify for a free street tree, a property must be residential and located in Falls Church. It must have adequate room within the public right-of-way, avoid conflicts with utilities and not be governed by a required landscaping plan. Trees must also be native and satisfy the program’s selection standards.

Advocates warn mature trees are disappearing

Despite the city’s relatively high canopy figure, VPIS President Mark Gross offered a more cautious assessment in the organization’s Nov. 24, 2024, newsletter.

Gross said the leafy appearance that has long helped define Falls Church is fading as large buildings replace trees on developed properties. He pointed to the former George Mason Middle-High School site and the broader West End as areas where greenery has become scarce.

Commercial construction extending toward property lines has also eliminated or damaged shade trees, he wrote. In residential areas, mature trees are frequently lost when smaller homes give way to larger houses and lots are cleared to simplify construction.

New saplings can eventually replace some of that coverage, but Gross stressed that they need many years to provide the canopy of the mature trees they replace. He urged the city to review its zoning and building rules, protect existing trees, require new plantings and replace street trees that have disappeared.

Arbor Day events offer ways to help

Residents will be able to adopt native trees and join volunteer planting activities on Saturday, April 19, as part of the city’s 2025 Arbor Day celebration.

From 8 a.m. to 1:30 p.m., the Neighborhood Tree Program will distribute bare-root saplings and a limited number of potted, locally rescued trees at the VPIS booth at the Falls Church Farmers Market.

Available species are expected to include swamp chestnut oak—the city’s 2025 Tree of the Year—along with black cherry, Eastern redbud, swamp white oak, sweetbay magnolia and white dogwood. Black chokeberry shrubs will be offered for smaller spaces.

City Arborist Charles Prince will raise Falls Church’s 2025 Tree City USA flag at 11 a.m. near City Hall. From 11:30 a.m. to 1:30 p.m., he will lead an all-ages volunteer planting effort in the northwestern corner of Cherry Hill Park near Great Falls Street.

Additional conservation programs are scheduled at Mary Riley Styles Public Library. Master Naturalist Amy Bolton will discuss creating outdoor spaces that support birds, butterflies, mammals and other wildlife from 11 a.m. to noon on April 12.

From 11 a.m. to noon on May 3, Virginia Cooperative Extension Master Gardener Amy Crumpton will explain how to identify and remove invasive vines and rapidly spreading perennials. The session will cover plant growth patterns, removal schedules, useful tools and community resources.