• Home
  • Landscape Materials

 


Materials


 

Physical Resources for Creating Urban Landscapes

While a wide range of materials can be used in landscapes, the primary components needed to create sustainable and regenerative urban landscapes tend to fall into one of the following categories:

  • Plants and seeds More on Plants here
  • Soil for grade adjustments More on Soil here
  • Bulk organic matter and compost for soil quality improvement and/or biological inoculation More on Compost here
  • Means of retaining or transporting water. More on Water here
  • Materials for walking surfaces and for under furniture (paths, patios and decks)
  • Materials for retaining slopes and building steps

The extraction, transportation, processing and disposal of bulk landscaping materials makes up a significant portion of the negative climate and ecosystem effects of landscaping.

Maintenance equipment use, irrigation with water that is drawn from depleting aquifers and/or from municipal water treatment systems and synthetic or over concentrated fertilizer applications make up the bulk of the remaining harmful effects.

To minimize the harmful impacts of creating a landscape as much as possible:

  • Incorporate as much of the existing on-site material into the new landscape as possible to minimize the effects transportation and disposal. When materials do need to be removed, consider where they are going and whether they can be repurposed or recycled.
  • Only bring to site material that is necessary and consider whether a lower level intervention can achieve your core goals. At the design stage this can mean spending time on working out what the underlying purpose each landscape component is intended to serve, which can open up a wider range of options for meeting a need than simply fitting together requested components.
  • Take care to select appropriate materials for the purpose and location. Even green materials have an ecological impact. If they don’t serve their intended purpose and need to be replaced after a short amount of time, their lifecycle costs may be higher than a product or material with higher initial impact but a much longer functional lifespan.
  • Look for locally available materials, reclaimed or diverted (from landfill) materials and materials from renewable, sustainable managed systems. Also consider maintenance inputs and end of life destination.
  • Minimize waste in the construction process (this starts at the design stage) by only placing high impact materials where they are needed for functional reasons and designing to material dimensions, to minimize unusable offcuts.
  • Care for the components, the longer they last the lower the annual ecological impact over their lifecycle.
A product that may be ecologically friendly in one geographic are may not be ecologically friendly in another, seeking materials sourced close to where you live and work is always the best place to start and can lead to landscapes with a strong relationship with their surrounding environment and some interesting and creative solutions unique to your projects

Information and online resources

Articles and General Information:

Plants and People

Healing nature and ourselves through gratitude and action. A lovely article by Robin Wall Kimmerer

Why 'plant blindness' matters - and what you can do about it

Weeding, writing and arithmetic… why green fingers are good for our children Guardian article on the importance of getting children back in to the garden.

Green therapy: how gardening is helping to fight depression 

Healthy Food:

NY Times article on Seed ownership

Breeding the heirloom plants of tomorrow

Research has found that organically grown apples have more diverse surface biology and and measurable difference in flavour from apples grown using conventional pesticide and fertilizer regimes.

Replacing chemical pest control with strips of wildflowers

A free discussion guide from the creators of 'Seed, the Untold Story'

A video of a highly productive suburban yard

Trees

All the things a tree does in urban landscapes: (Video)

Indigenous forest management increases, rather than decreases, ecosystem productivity

A soil calculator and native tree species guide developed to help improve tree planting success in Ontario and Alberta

A video on relieving deep soil compaction prior to tree planting (this was identified as the most significant factor in success or failure of tree planting along highways) 

Diverse forests store twice as much carbon as monocultures 

There is a Forgotten Solution to Climate Change That We Must Invest In – Nature

Lawns / Replacing Lawns

To Nurture Nature, Neglect Your Lawn: Why poison the earth when you can have wildflowers at your feet and songbirds in your trees without even trying? 

Reduce your lawn 

Make Meadows not lawns

Why Lawns are not Sustainable in Ecosystem Gardening

Give Your Yard Back to Nature

Planting a Wildflower Meadow? Site Preparation Comes First!

Plants, insects and other life

Supporting the non bee pollinators on our landscapes

A design guide for street side pollinator gardens (Google drive document)

Video on importance of native plants to insects

What All the Affection for Monarch Butterflies Misses A thoughtful article about over simplifying our efforts to protect and preserve 'nature'

Give Your Yard Back to Nature

Why Canada's urban spaces are critical for endangered species

Do nativars (cultivated selections of native plants) support native leaf eaters?

Saving pollinators also saves money and reduces fossil fuel consumption

A look at the intricate relationship between plants and pollinators

Plants Can Hear Animals Using Their Flowers, And they react to the buzzing of pollinators by sweetening their nectar

Urban nature: What kinds of plants and wildlife flourish in cities?

Specialist Bees Need Special Plants

Native Plants

Ecozones and Regions of Canada interactive map

Ontario's Ecozones and regions

An interesting visualization of the similarity and differences in plant species between regions

Tracking Phenological change as climate changes

An extensive, searchable photo library of plants native to the north east forest 

Reintroducing native plants to abandoned urban lots 

Amazing diversity in limited spaces 

A nursery guide to propagating native plants (ebook sold through kobo)

Invasive species

Wikipedia list of invasive species in North America 

Ontario's invasive species act

How a popular landscape plant became an aggressive invasive species 



Groups and Organizations

Gaia College offers online and classroom education on organic land care and related skills. 

Sustainable Landscaping Initiative Vancouver is a non-profit organization created by landscapers, which strives to improve industry sustainability.

Sustain Ontario support for productive, equitable and sustainable food and farming systems that support the health and wellbeing of all people in Ontario, through collaborative action.

Ecological Landscape Alliance "Advocating for responsible stewardship of land and natural resources in landscaping and horticultural practices." Based in the north eastern United States but with an extensive catalog of articles and online and recorded seminars available to members.

I Naturalist Connect with Nature Explore and share your observations from the natural world.  




Canadian Society for Organic Urban Land Care (SOUL)
Contact Us

Powered by Wild Apricot Membership Software