Oasis Forest: The Forest Garden
Restoration & Stormwater Research
Rudbeckia Hirta
Understory
Groundcover
Flowering Meadow
Reimagine Your Space with Tropos
Purpose
Oasis Forest
Environmental Artwork & Ecological Restoration
Your Place
What You Can Do
You can restore habitat around Monument Trees. We've designed this stewardship program and aftercare plan to help Monument Trees thrive in your space. Loving your space is worth the effort! Discover the latest top research on environmental restoration, like the new seasonal calendar and curated planting guide. Join as a member for added benefits and updates on best practice.
The program is tailored for residents in Southern Ontario, but it's designed for anyone living in the Carolinian Life Zone, including much of the Eastern United States. The plan focuses on the critical period after planting when plants are taking root (typically 1–3 years), and can also be used as a guide for long-term care.
Vision
Present
Your Place
Environmental Artwork
Oasis Forest: The Forest Garden
We've designed the Oasis Forest program to make high quality design and restoration available at a range of scales, while also providing a resource for you to care for a landscape after installation. This membership is for you if you want to create a native garden or restore habitat around heritage trees, but you either aren't sure where to start, or you would like expert advice on native plant selection, planting guidelines and aftercare.
Urban scale restoration
Building Conservation Networks
How ancient, urban trees support the future of cities
Protecting Ancient Trees
The Monument Tree Project, led by Tropos, is a long-term research and public engagement initiative that brings ecological memory to the forefront of urban planning. Situated in Hamilton, Ontario—a region once characterized by expansive oak savanna and Carolinian forest—the project maps and documents the city’s oldest native trees, known as Monument Trees.
Monument Trees are living landmarks: over 150 years old, these trees are monumental in age and size and also in their ecological function and cultural significance. Through Tropos’ research, more than 1,500 of these trees have been identified and mapped across the city, surfacing an ecological network embedded within Hamilton’s urban fabric.
By highlighting the significance of these trees—and the stories of the people who live with them—Monument Trees builds a bridge between historical landscape patterns and contemporary urban life. The project encourages a re-evaluation of urban planning and conservation strategies and advocates for the integration of these natural monuments into the city's ecological infrastructure. It invites a new model of conservation grounded in memory and community, where legacy trees are not only preserved but actively integrated into a future vision of urban conservation.
Strategic Conservation
Each Ward contains a unique number of Monument Trees—rare, living remnants of pre-settlement landscapes that are 150 years or older. These trees are much more than historic landmarks; they play an outsized role in urban climate resilience. Thanks to their size and age, Monument Trees store significant amounts of carbon, absorb more water than younger trees, and cool their surroundings—often lowering local temperatures by as much as 2 degrees Celsius.
The map uses a gradient of green to represent overall canopy cover across Wards. Darker shades indicate denser forest cover, while lighter tones reflect areas with less tree canopy. Interestingly, many Wards that appear lighter on the map—indicating lower overall canopy—still contain a high number of Monument Trees. This highlights the uneven distribution of legacy trees across the city, and underscores how even in deforested or urbanized areas, these ancient trees remain critical ecological anchors.
By understanding the presence of Monument Trees in each Ward, our work provides critical insight into the city's natural history while outlining areas where strategic conservation and reforestation efforts can have the greatest impact.
Monument Tree Resources
Urban scale restoration
Urban scale restoration
Custom Restoration
Present
Environmental Artwork
Your Place
Helping You Create Beautiful, Functional Spaces
This experience is designed to fit your lifestyle and unique space. The simple maintenance strategy we've created keeps things organized as the season progresses. It includes professional solutions, systems for long-term maintenance, a comprehensive guide to build your own garden, aftercare, bioregional basics and tailored research on companion species to restore biodiversity.
Urban scale restoration
Urban Design
Building Conservation Networks
A core pillar of the Monument Tree Project’s urban design strategy is the creation of living conservation networks that respond to the complexity of the city’s built and ecological fabric. Rather than treating restoration as a one-size-fits-all intervention, our approach begins by breaking down the city into different types of urban space—backyards, laneways, streets, school yards, parks, institutional lands, and vacant lots.
Each Monument Tree exists within a unique context, shaped by its surroundings: some stand in tightly packed residential neighborhoods, others along informal trails or tucked behind industrial edges. By understanding these varying conditions, our work identifies restoration strategies that are ecologically effective, and also achievable and meaningful for the people who live alongside them.
This framework allows for restoration that is both site-specific and scalable, guiding everything from planting techniques in the Oasis Forest program to neighbourhood stewardship models. In doing so, our work enables the formation of interconnected conservation patches—urban forests in miniature—that collectively support biodiversity, climate resilience, and cultural memory across the city.
Native Groundcover
A mix of sedges, grasses and flowering native plants
Oasis Forest
The Forest Garden
The Oasis Forest: The Forest Garden program is built around a simple but clear idea: to thicken the green space around Monument Trees and, in doing so, create a patchwork of conservation islands across the city. These ecological oases emerge not from large-scale infrastructure projects, but from the cumulative actions of landowners and neighbours restoring the land around them.
At its core, this is more than a landscape restoration tool—it’s a collective vision for enhancing the green fabric of the city around its oldest living infrastructure: Monument Trees. By focusing on private property, where over 60% of Hamilton’s Monument Trees reside, the program empowers residents to become active stewards of ecological transformation.
The Oasis Forest: The Forest Garden program is a home-scaled ecological restoration tool designed to support collaboration among landowners who care about the future of their local environment. Rooted in restoration best practices and professional guidance, the program offers clear advice for transforming yards, edges, and overlooked spaces around trees into biodiverse, climate-resilient gardens.
Designed as a collaborative tool, the program provides residents with a restoration guide grounded in best practices: how to treat the soil, select regionally appropriate native species, and support long-term landscape health. But its real strength lies in the bigger picture: the creation of a living, connected landscape—one home, one block, one neighbourhood at a time.
Each forest garden acts as a small ecological island—designed not in isolation, but as part of a wider patchwork of remnant forest, canopy corridors, and native species habitat. Through this network of home-based interventions, urban green streets, parkland restoration and reclaimed heritage landscapes, significant habitat in the urban forest begins to grow, one site at a time.
Private citizens make up more than 60% of the stewardship of Monument Trees in Hamilton. Restoring biodiversity around historic trees is the best way to increase the longevity of these resilient native species.
Stewardship
White Oak
West 5th, Hamilton, ON
Resources
Mokrycke, Lesia. Building Conservation Networks, Canada Council for the Arts, 2021
Mokrycke, Lesia. Monument Trees,
Canada Council for the Arts, 2021
Rainer, Thomas, and Claudia West. Planting in a Post-Wild World: Designing Plant Communities for Resilient Landscapes. Timber Press, 2015
Dunnett, Nigel, and Noël Kingsbury. Planting the High Line: The Design of a New York City Park and the Inspiration for the Garden of the Future. Timber Press, 2015
Mathur, Anu. Design in the Terrain of Water. Oxford University Press, 2005
McHarg, Ian L. Design with Nature. Natural History Press, 1969
Simard, Suzanne. Finding the Mother Tree: Discovering the Wisdom of the Forest. Alfred A. Knopf, 2021
Wohlleben, Peter. The Hidden Life of Trees: What They Feel, How They Communicate – Discoveries from a Secret World. Greystone Books, 2016
Tsing, Anna. The Mushroom at the End of the World: On the Possibility of Life in Capitalist Ruins. Princeton University Press, 2015
