Winnipeg Architecture Foundation


Landscape Architects

Cynthia Darling Cohlmeyer



Well known for her dedication to vegetation management with a special interest in indigenous plants, Cynthia Cohlmeyer owns the Winnipeg firm of Cynthia Cohlmeyer Landscape Architecture Ltd. Born in the United States, she holds the distinction of being the first woman in Canada to graduate with a Masters of Landscape Architecture. Upon completing a liberal arts degree at Carleton College, Minnesota, she discovered landscape architecture more satisfying for her cross-disciplinary interests in science and art. A stint in Toronto in 1970 -71 was enriched by her friendship with urbanist Jane Jacobs, where she developed an interest in the area of citizen empowerment.

Cynthia and her husband Steve Cohlmeyer moved to Winnipeg in 1971. Steve studied architecture, while she began her masters program at the University of Manitoba, graduating with an M.L.A. just before their first child was born in 1977. Her thesis on aspen parkland was supervised by Professor Jennifer Shay. Hydrologist Bob Newbury was also a valued mentor in how the characteristics of water impact an environment. The Landscape Architecture student body was small. Each student received personal attention and any academic deficiencies were given extra assistance.

With a new baby and husband in tow, Cynthia spent a stimulating year touring Europe and living in France, immersed in the landscapes and architecture. The Cohlmeyers then found work in Winnipeg. For the next few years, Cynthia focused mainly on family responsibilities but was often a silent partner in Steve’s design proposals and projects. This was a period for gaining practical design skills.

It was during this time that she gained intensive experience with the collecting of seeds and the propagation of native plants before any commercial sources were available. Frequent visits to the Living Prairie Museum, combined with close study of the hardiness and gentle beauty of indigenous plants, cultivated a respect for prairie ecosystems, while repeated experiments in their cultivation fortified her depth in a new and specialized field. Cynthia came to lead citizen awareness and action in the rescuing of the Winnipeg’s beleaguered smaller streams, particularly Truro Creek and Omand’s Creek. This involved not only convincing City officials, but organizing neighbourhood stakeholders and even slogging into the creeks to remove garbage. The installation of a series of riffle structures on the creeks slowed the flow, riparian regions were returned to a more natural state and Truro and Bruce Parks were overplanted with indigenous trees and plants. As wildlife returned and the areas naturalized over a 14-year period, lessons were learned by Parks staff and citizens.

As an outcome of the hydrologic study of Truro Creek, it was determined that glycol from de-icing planes on the runways of the Winnipeg Airport was toxic to the creek and thence to the Assiniboine River. A lengthy campaign of pressure led by Cynthia and some of these same activists convinced the airport authority to install an apron around the runways to collect and process the glycol, a victory for the environment and the activists. This also led to Cynthia undertaking a long range vegetation management plan of the large tract of land, adjacent to Richardson International Airport. This was done for ands for 17th Wing Winnipeg, Department of National Defence flight squadrons. During 1994, formal and naturalized areas were introduced, wild plants and small animals returned but eventually most of these naturalized areas did not survive being mowed, an ongoing challenge for landscape architects dedicated to sustaining engineered wildlands.

Opening her own practice in 1983, Cynthia was involved with the development of an indigenous horticultural site in Lockport, Manitoba, through the active ARC Agreement. It is a compact site on the east side of the Red River where for 3,000 years First Nations people fished, grew corn and built large storage pits for their crops. Such a significant archaeological site called for great sensitivity to the interpretation of landscape, and a regime of non-mowing of the suckering plants was installed, although repeated flooding has altered some of the site interpretation and plantings from the 1984-88 period.

Cynthia served for many years as the chair of the Environmental Committee of Nature Manitoba, and produced an Inventory of Natural Areas that informed the City’s 1993 new strategies for the management and development of wildlands in its Ecologically Significant Natural Lands guidelines. Her work identified that the abundant river bottom forest storey within the city, being mostly undisturbed, offers some of the best examples of that ecosystem available to experience. Translated into action, this strategy assisted her five-year engagement with the creation of Henteleff Park, a restored riparian forest in south St.Vital, re-opened by the City in 2002 for its association with Metis settlement, early market gardens and the Henteleff family’s tree nursery. Extensive planting of native trees and shrubs, the establishment of public access routes and an engaging interpretive component are the product of professional landscape guidance and citizen participation. Recent interpretative panels installed along the river trails in Assiniboine Park written by Cynthia Cohlmeyer display a rigorous understanding of the interaction of humans with evolving riparian spaces and water courses.

Another example of this desire to educate through design by Cynthia is her work on the Forks National Historic Site in the early 1990s. This includes the re-development of a Prairie Forks Garden in the nucleus of the site, the limestone Wall Through Time retaining wall imbedded with the remarkable narrative of this significant archaeological site, and the installation of flood markers on the canopy posts over the Forks Plaza, all designed to make a visit to the Forks a personal discovery of human interaction with the natural world.

Mayor Susan Thompson commissioned a series of landscape statements, called Gateway Greens, at Winnipeg's main portals in 1994. Cynthia designed Highway No.1 West and East, both at the Perimeter Highway. `Rings of Habitat`, is a series of 65-metre circular plantings of indigenous trees designed to cultivate islands of habitat, with the centres harvested for hay.

Cynthia was honoured with the commission to design the Women’s Memorial Grove on the east grounds of the Manitoba Legislature. The site commemorates the 1989 slaying of fourteen female engineering students, at Ecole Polytechnique, Montreal. Here, she chose a quiet space enclosed ,with fourteen Tyndall limestone carved seats, for quiet reflection on the resilience of women in the face of violence. The site was dedicated in 1995.

Cynthia has been active with both the Manitoba Association of Landscape Architects (MALA)and the Canadian Society of Landscape Architects (CSLA) Board of Directors. In 2006, she was named a Fellow of the CSLA.

Collaborating with her husband’s architectural practice positions on a variety of Canadian and international projects, provides Cynthia with colleagues and access to the professional support services in their joint offices. Planning and design for City Square Plaza in Regina, from 2008 to 2010, was a highlight in their joint urban planning and public space skills.

In 2013-14, Cynthia headed a signature project in the City of Winnipeg Public Works East Yard redevelopment, off Nairn Avenue. Satisfying LEED criteria for sustainability, the project recovered waste lands from a fill site through the creation of two large detention ponds heavily planted with many native species, with the goal of cleansing the water and creating wildlife habitat, now actively happening. The site is also welcoming to workers, school groups and neighbours, a vibrant landscape in a previously bleak and toxic industrial setting.

Recognition & Awards

  • Fellow, Canadian Society of Landscape Architecture
  • City Re-emerging: East Exchange and Red River International Ideas Competition Honorable Mention (2002-01-01)
  • Complexe culturel et administratif de Montréal: International Design Competition Finalist with (2003-01-01)
  • Forks Prairie Garden Prairie Design Award with CAL (2005-01-01)
  • Movement Disorder Clinic, Winnipeg Award of Excellence Interprovincial Prairie Design Awards wi (2008-01-01)


  • Cohlmeyer, Cynthia. "Aspen Parkland." Master's Thesis.