The Sustainable House demonstrates best practices in both residential energy and environmental practices. For Live Green, Live Smart those environmental concerns extend to the environment beyond the walls of our home - the site and vegetation that surround us are also major elements in our efforts to create a sustainable home that will serve occupants for a hundred years. Our landscape uses techniques well-known to many of us, such as restoring native drought resistent plants, building permeable hardscapes and rain gardens, and practicing rainwater capture - but we also use intensive techniques that allow us to provide food for humans and animals on the 1/3 acre we occupy. One of these techniques is 'permaculture,' an old concept being rediscoverd and redeployed by gardeners interested in sustainable organic gardens.
The term itself, however, was coined by environmentalists Bill Mollison and David Holmgren in the mid-1970s to designate "an integrated, evolving system of perennial or self-perpetuating plant and animal species useful to man," as Holmgren writes in his book Permaculture: Principles and Pathways Beyond Sustainability. The term itself is a contracted compound of permanent, culture, and agriculture. In the 1970s Holmgren and Mollison began to develop a system of techniques for holistic landscape designs modeled after nature while including humans.
A more recent and expanded definition of the concept of permaculture is 'consciously designed landscapes which mimic the patterns and relationships found in nature, while yielding an abundance of food, fibre and energy for provision of local needs.'
In Gaia’s Garden: A Guide to Home-Scale Permaculture Toby Hemenway defines permaculture as "a set of techniques and principles for designing sustainable human settlements." Permaculture’s vision is of people participating in and benefiting from an abundant, nurturing natural world (Mollison).
Permaculture is a worldview, a design and thinking tool for consciously designing sustainable human environments. Permaculturalists design with plants, animals, buildings and organizations - and in doing so they focus more on the “careful design of relationships among [those parts]—interconnections—that will create a healthy, sustainable whole.” (Hemenway, 2000)
Permaculture’s goal is to create “ecologically sound, economically prosperous human communities.” (Hemenway, 2000) In order to accomplish this it is guided by a set of ethical principles:
- Care for the Earth
- Care for People
- Share the Surplus
From these ethical principles a set of design principles emerge and are used to guide the design of those sustainable systems. Many of the design principles draw inspiration from our understanding of how natural ecosystems work, while others come from long-term societies and notions of sustainability. There are differing numbers of principles as permaculture evolves and adapts however these are the 12 as taken from David Holmgren’s book:
- Observe and Interact
- Catch and Store Energy
- Obtain a Yield
- Apply Self-regulation and Accept Feedback
- Use and Value Renewable Resources and Services
- Produce No Waste
- Design from Patterns to Details
- Integrate Rather than Segregate
- Use Small and Slow Solutions
- Use and Value Diversity
- Use Edges and Value the Marginal
- Creatively Use and Respond to Change
While designing and implementing the landscaping at the Live Green, Live Smart project house we seek to follow these guidelines as they show us how to help our yard’s ecosystem thrive and therefore increase in diversity, health, abundance and beauty. By doing so we create a living ecosystem within our yard that does much of the typical landscaping work for us (fertilizing, weeding, spraying pesticides) while giving us useful harvests of food, plant and animal habitat as well as beauty.
The permaculture demonstration garden, located in the northwest corner of the property, is a fully implemented example of the possibilities permaculture design opens up to gardening. There you can see examples of trees, shrubs, herbs and ground covers all planted to establish relationships that are mutually beneficial and encouraging of growth and health, all while providing human needs as well.
Resources:
Holmgren, David Permaculture: Principles and Pathways Beyond Sustainability
Holmgren Design Services. Hepburn, Australia 2002
Hemenway, Toby; Gaia’s Garden: A Guide to Home-Scale Permaculture
Chelsea Green Publishing Company. White River Junction, Vermont 2000.
Mollison, Bill; Permaculture: A Designer's Manual
Tagari Press. Australia
http://en.wikipedia.org/wiki/Permaculture
http://www.pathtofreedom.com An urban homesteading project in Pasadena, California.