International Peace Garden Conservatory Expansion

The Conservatory addition unlocks the ability for one of the world’s most diverse collections of cacti and succulents to continue to grow and be properly cared for, whilst raising awareness of the importance of preservation. Rooted in Turtle Mountain, the site is part of the International Peace Garden campus — a “celebration of peace and living monument to the ideals of friendship and cooperation,” straddling the Canada-U.S. border. The project prioritized equal country representation for design and construction teams, resources and building materials.

The 14,000-sf addition ties into the existing conservatory at its 31-foot peak, creating a high-volume sanctuary for plant growth. The greenhouse remains in constant conversation with the site’s natural beauty as poly-carbonate paneling fosters transparency and resiliency against the elements. Users can enjoy direct forest views, while passersby can glimpse plant life silhouettes and activity, enhancing visibility of the attraction.

Juxtaposing its prairie context, the expansion illuminates an all-season interior landscape, drawing focus to a biological oasis of desert flora and fauna. Seating areas, and meandering pathways around planting beds, stimulate an immersive experience of play and education with invited moments for relaxation. Curving pathways embrace slight elevation changes and support accessible exploration. New workspaces aid horticulturalists in maintaining the collection, while upgraded building spaces, including the cafe, patio and multi-purpose areas, establish a multi-purpose event and public destination.

The design commits to sustainable stewardship with radiant in-floor heating, solar wall system and high efficiency windows, all developed through energy modelling and daylighting analysis. With opportunities for future expansion, the landmark opened in 2024 to international visitors, celebrating the values of peace, conservation and cooperation.