[1] The firm is a proponent of the "New American Garden" style, which is characterized by large swaths of grasses and fields of perennials.
[2] Notable works of OvS' include the landscape architectural design for the Federal Reserve Campus in Washington, DC; The National World War II Memorial, the Martin Luther King Jr. National Memorial, Tippet Rise Art Centre in Fishtail, Montana; and multiple commissions at both Chicago Botanic Garden and The New York Botanical Garden,[3] including the Native Plant Garden.
OvS' designs embrace the ideals of low-input landscaping: plant diversity with limited inputs of pesticides, fertilizer, water, and maintenance.
The award recognizes a “distinguished body of work that influences the professional practice of landscape architecture.” The firm's project to improve the landscaping for a block of town homes in the Ellen Wilson neighbourhood of Capitol Hill in Washington, D.C., was recognized with an American Institute of Architects Honor Award in 1998.
[3] In the same year, the firm received a Residential Design Honor Award from the American Society of Landscape Architects for their work on a residential Coastal Island Retreat on Pine Island, South Carolina.