Native Plant Roof Garden 
{"autoplay":"true","autoplay_speed":"8000","speed":"1000","arrows":"true","dots":"false","loop":"true","nav_slide_column":5,"rtl":"false"}
{"autoplay":"true","autoplay_speed":"8000","speed":"1000","arrows":"true","dots":"false","loop":"true","nav_slide_column":5,"rtl":"false"}

DETAILS

LocationDallas, Texas, United States
ClientFederal Reserve Bank
SizeTwo-acre roof gardens

This office building’s roof garden celebrates a potent image of the native Texas landscape: the level, grass-covered plains emerging from a wooded riparian area. A design vocabulary of native, drought-tolerant plant materials, especially selected to react to light and air movement, reinforces this design approach. The project serves as a two-acre rooftop garden for employees of this regional headquarters at the edge of Dallas’ downtown core. From the high-rise building, the garden enriches a foreground view against the dramatic Texas skies beyond. The design interprets the regional landscape in several ways. The curvilinear walk is a metaphor for the “stream,” bordered by a display garden of native annuals and perennials and backed by a thicket of native birch. This “woods,” underlain by Texas riparian groundcovers and perennials, is placed at the base of the building to separate the garden, provide privacy to the workers at this level and mitigate the scale of the building. The “plains” are a combination of native grasses organized in long wedges of perfectly horizontal green and abstractly eroded by a geometry of sloping pathways. The project uses native drought-tolerant plantings, such as Buffalo Grass, Red Yucca and perennials, wherever possible to educate and expose visitors and employees to the aesthetic strengths of regional materials, and to reduce long-term water needs and other horticultural costs.

All of the plant material is dynamic through the seasons: the birch has fall color and is leafless in the winter; the flowering natives bloom alternately year-round; and the buffalo grass changes its texture and shade of green during the year. Street level planting, including native Texas Red Yucca and Southern Red Oaks, marries the project to its urban surroundings. The project’s constraints of severe loading restrictions, waterproofing concerns and low budget led to a simple design that is a study in contrasting planes. The absolute prohibition on slab penetrations resulted in a structural slab that slopes away from the towers for the full width of the garden. On this sloping surface, the landscape architects gradually increased soil depths from 12 to 30 inches in order to maintain the level quality of the Texas plains. As a result, the gravel paths emerge as arroyos, seemingly eroded in these thin panels of native grasses.

Related Projects

Heights Mercantile

Heights Mercantile is a mixed-use space centered on a bike trail in the heart of the beloved Houston Heights neighborhood. It transformed vacant office and warehouse sites into a community-anchoring redevelopment featuring 16-first-to-market specialty brands and four chef-driven restaurant concepts. As the development’s backbone, adjacent hike and bike trails ...

Rosewood Sand Hill Hotel

SWA provided full landscape architectural services for this mixed-use development, which includes a 120-room luxury hotel, five villa residences, a supporting office complex, fitness center, spa and multi-use space. The Sand Hill Hotel and associated offices are nestled onto a dramatic hillside that slopes toward the Santa Cruz Mountains immediately beyond I-2...

Riyadh East Sub-Center

SWA provided comprehensive planning for a new 300-hectare commercial, mixed-use center in northeast Riyadh abutting the KKI Airport. This area is part of an urban management framework being developed to guide the future growth of the city. SWA developed a plan and implementation strategy to establish an urban center comprising residential neighborhoods, corpor...

Zifeng Tower Nanjing

Nanjing Greenland International Commercial Center is an urban high-rise project containing two major sites, A1 and A2. The 450-meter main tower, Zifeng Tower, with its concentric rings of mixed trees and linear water features, is the focus of the A1 site. The landscape design encompasses existing parks as well as the adjacent historic features in o...

OCT Bay

Located in Shenzhen, OCT Bay has a combined site area of approximately 1.25 square kilometers including equal parts new urban center and nature preserve. SWA provided both master planning and landscape architectural services for the entire site. As a new urban cultural and entertainment destination, OCT Bay provides urban amenities, entertainment components, p...

Poly Future City

As the first phase of a large development along a new subway line in Beijing, Poly Future City suggests what’s to come. A sleek sales center features an interactive landscape with water features punctuating its pavilions, which boast WiFi, heated seating, and power outlets, all solar-powered. For this temporary building and landscape, SWA took care to invest i...

Kasumigaseki Plaza Renewal

Tokyo’s first high-rise and architectural landmark is located in the heart of downtown, where government and major private business offices are concentrated. Urban growth changed the dynamics of the building’s surroundings and left its public spaces ineffective and barren. The addition of new mixed-use buildings provided the owners with an opportunity to bring...

Ambleside Mixed-Use Development

Landscape improvements for this new mixed-use development integrate and enhance the streetscape improvement measures the city of West Vancouver is currently implementing, providing a vibrant and pedestrian friendly landscape along the entire perimeter of the site. The landscape design for the 1300 Block, Marine Drive South at Ambleside Village Centre contribut...