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

Library of Congress Packard Campus

A 45-acre site 70 miles southwest of Washington, D.C. serves as the home for the Library of Congress’s Motion Picture, Broadcasting, and Recorded Sound Collections. The 400,000-square-foot complex consolidates the world’s largest audio-visual collection and provides improved facilities for research, digital conversion, long-term conservation, and public apprec...

Santana Row

SWA provided full landscape architectural services for the development of a neo-traditional town center near downtown San Jose. The client’s vision called for a variety of design styles to create a town center with an impression of growth over time. This theme is expressed in building elevations as well as landscape design. The restaurants and boutique r...

Yorba Linda Library + Arts Center

Here a new public library and cultural arts center were artfully sited to create memorable outdoor spaces. Working in collaboration with Group 4 architects, SWA transformed an earlier parking-fronted concept into a plan that resulted in landmark building and outdoor space composition along one of Yorba Linda’s main streets. The outdoor space – the Paseo – serv...

Guthrie Green Park

Guthrie Green transforms a 2.6-acre truck yard into a lively urban park in the heart of downtown Tulsa’s emerging arts district. Opened in September 2012, Guthrie Green has become the area’s leading destination, drawing 3,000 plus people weekly to activities that have enriched the urban experience and spurred district-wide revitalization. The high-performance ...

Embankment Square

The Embankment Square is located along the east bank of the Huangpu River in Shanghai. The project consists of landscape areas in three office parcels and one waterfront park parcel. The view of the site is remarkable, looking toward the landmark skyscrapers of Lujiazui Financial Center, Nanpu Bridge, the Bund, and the Minsheng CBD.

The design concept c...

Dubai Opera District

The elegant and the everyday coexist harmoniously in Dubai’s new Opera District, is a stylish cultural destination set to promote culture and the arts, stimulate global exchange, encourage local talent, and serve as a vibrant events venue. Dramatic view corridors lead to both to the opera house and to the adjacent spectacle of the world’s tallest building—the ...

Avenida Houston

For many visitors, the George R. Brown Convention Center serves as Downtown Houston’s gateway. Ahead of hosting the Super Bowl, city officials sought to transform the convention center’s uninspiring eight-lane drop-off into a pedestrian plaza for civic enrichment, art, and leisure. SWA took on this ambitious 140,000-square-foot redesign, converting five city b...

Elk Grove Civic Center

SWA’s design for this community resource improves upon part of a 56-acre master plan with a civic center campus set within a beautiful park, and an added public outdoor commons. The pedestrian-friendly commons weaves new buildings together with mature trees and an outdoor living space linking together a community center, an aquatics center, and a future librar...