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Sustainable landscaping is a modern type of gardening or landscaping that takes the environmental issue of sustainability into account. According to Loehrlein in 2009 this includes design, construction and management of residential and commercial gardens and incorporates organic lawn management and organic gardening techniques.^[1]

Definition

A sustainable garden is designed to be both attractive and in balance with the local climate and environment and it should require minimal resource inputs. Thus, the design must be “functional, cost-efficient, visually pleasing, environmentally friendly and maintainable".^[2] As part of sustainable development, it pays close attention to preserving limited resources, reducing waste, and preventing air, water and soil pollution. Compost, fertilization, integrated pest management, using the right plant in the right place, appropriate use of turf and xeriscaping (water-wise gardening) are all components of sustainable landscaping.

Benefits

Sustainability can help urban commercial landscaping companies save money.^[3] In California, gardens often do not outweigh the cost of inputs like water and labor. However, using appropriately selected and properly sited plants may help to ensure that maintenance costs are lower because of reduced inputs.

Long-lasting
Reduced water usage and no surface runoff or puddles
Minimal use of fertilizers and pesticides
Use of green waste
Conservation of energy and resources^[4]

Issues

Sustainability issues for landscaping include:

Non-sustainable practices include:

Consumption of non-renewable resources
Greenhouse gas emissions

Solutions

Some of the solutions are:

Reduction of stormwater run-off through the use of bio-swales, rain gardens and green roofs and walls.^[5]^[6]^[7]
Reduction of water use in landscapes through design of water-wise garden techniques (sometimes known as xeriscaping)^[8]^[9]^[10]^[11]
Bio-filtering of wastes through constructed wetlands^[12]
Irrigation using water from showers and sinks, known as gray water^[13]
Integrated Pest Management techniques for pest control
Creating and enhancing wildlife habitat in urban environments^[14]
Energy-efficient garden design in the form of proper placement and selection of shade trees and creation of wind breaks ^[15]^[16]
Permeable paving materials to reduce stormwater run-off and allow rain water to infiltrate into the ground and replenish groundwater rather than run into surface water^[17]^[18]
Use of sustainably harvested wood, composite wood products for decking and other garden uses, as well as use of plastic lumber^[19]
Recycling of products, such as glass, rubber from tires and other materials to create landscape products such as paving stones, mulch and other materials^[20]
Soil management techniques, including composting kitchen and yard wastes, to maintain and enhance healthy soil that supports a diversity of soil life
Integration and adoption of renewable energy, including solar-powered lighting^[21]
Development of lawn alternatives^[22] such as xeriscaping,^[23] floral lawns,^[24] and meadows.^[25]

Proper design

One step to garden design is to do a "sustainability audit". This is similar to a landscape site analysis that is typically performed by landscape designers at the beginning of the design process. Factors such as lot size, house size, local covenants and budgets should be considered. The steps to design include a base plan, site inventory and analysis, construction documents, implementation and maintenance.^[2] Of great importance is considerations related to the growing conditions of the site. These include orientation to the sun, soil type, wind flow, slopes, shade and climate, the goal of reducing irrigation and use of toxic substances, and requires proper plant selection for the specific site.

Sustainable landscaping is not only important because it saves money, it also limits the human impact on the surrounding ecosystem. However, planting species not native to the landscape may introduce invasive plant species as well as new wildlife that was not in the ecosystem before. Altering the ecosystem is a major problem and meeting with an expert with experience with the wildlife and agriculture in the area will help avoid this.^[26]

Irrigation

Mulch may be used to reduce water loss due to evaporation, reduce weeds, minimize erosion, dust and mud problems. Mulch can also add nutrients to the soil when it decomposes. However, mulch is most often used for weed suppression. Overuse of mulch can result in harm to the selected plantings. Care must be taken in the source of the mulch, for instance, black walnut trees result in a toxic mulch product. Grasscycling turf areas (using mulching mowers that leave grass clippings on the lawn) will also decrease the amount of fertilizer needed, reduce landfill waste and reduce costs of disposal.^[27]

A common recommendation is to add 2-4 inches of mulch in flower beds and under trees away from the trunk. Mulch should be applied under trees to the dripline (extension of the branches) in lieu of flowers, hostas, turf or other plants that are often planted there. This practice of planting under trees is detrimental to tree roots, especially when such plants are irrigated to an excessive level that harms the tree. One must be careful not to apply mulch to the bark of the tree. It can result in smothering, mould and insect depredation.

The practice of xeriscaping or water-wise gardening suggests that placing plants with similar water demands together will save time and low-water or drought-tolerant plants would be a smart initial consideration.

A homeowner may consider consulting an accredited irrigation technician/auditor and obtain a water audit of current systems. Drip or sub-surface irrigation may be useful. Using evapotranspiration controllers, soil sensors and refined control panels will reduce water loss. Irrigation heads may need readjustment to avoid sprinkling on sidewalks or streets. Business owners may consider developing watering schedules based on historical or actual weather data and soil probes to monitor soil moisture prior to watering.^[2]

Building materials

When deciding what kind of building materials to put on a site it is important to recycle as often as possible, such as for example by reusing old bricks.

It is also important to be careful about what materials you use, especially if you plan to grow food crops. Old telephone poles and railroad ties have usually been treated with a toxic substance called creosote that can leach into the soils.

Sustainably harvested lumber is available, in which ecological, economic and social factors are integrated into the management of trees used for lumber.^[28]

Planting selection

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Outline Index
Principles	Anthropocene Environmentalism Global governance Human impact on the environment Planetary boundaries Development
Consumption	Anthropization Anti-consumerism Circular economy Durable good Earth Overshoot Day Ecological footprint Ethical Green consumption Micro-sustainability Over-consumption Product stewardship Simple living Social return on investment Steady-state economy Sustainability Advertising Brand Marketing myopia Sustainable Consumer behaviour Market Systemic change resistance Tragedy of the commons
World population	Control Demographic transition Dependency ratio List Family planning Intergenerational equity Population ageing Sustainable population
Technology	Appropriate Environmental technology Natural building Sustainable architecture Sustainable design Sustainable industries Sustainable packaging
Biodiversity	Biosecurity Biosphere Conservation biology Endangered species Holocene extinction Invasive species
Energy	Carbon footprint Renewable energy Sustainable energy
Food	Civic agriculture Climate-smart agriculture Community-supported agriculture Cultured meat Sustainable agriculture Sustainable diet Sustainable fishery
Water	Air well (condenser) Bioretention Bioswale Blue roof Catchwater Constructed wetland Detention basin Dew pond Footprint Hydroelectricity Hydropower Infiltration basin Irrigation tank Marine energy Micro hydro Ocean thermal energy conversion Pico hydro Rain garden Rainwater harvesting Rainwater tank Reclaimed water Retention basin Run-of-the-river hydroelectricity Scarcity Security Small hydro Sustainable drainage system Tidal power Tidal stream generator Tree box filter Water conservation Water heat recycling Water recycling shower Water-sensitive urban design
Accountability	Corporate environmental responsibility Corporate social responsibility Environmental accounting Environmental full-cost accounting Environmental planning Generational accounting Sustainability Accounting Measurement Metrics and indices Reporting Standards and certification Sustainable yield
Economic	Debt Sustainability Analysis Fiscal sustainability
Applications	Advertising Art Business City Cultural sustainability Climate finance Community Disinvestment Eco-capitalism Eco-cities Eco-investing Eco-socialism Ecovillage Environmental finance Green economy Construction Fashion Finance Gardening Geopark Green Development Infrastructure Marketing Green roof Greening Impact investing Landscape Livelihood Living Market Organic movement Organizations Procurement Refurbishment Socially responsible business Socially responsible marketing Sanitation Sourcing Space Sustainability organization Tourism Transport Urban drainage systems Urban infrastructure
Sustainable management	Environmental Fisheries Forest Humanistic capitalism Landscape Materials Natural resource Planetary Recycling Waste
Agreements and conferences	UN Conference on the Human Environment (Stockholm 1972) Brundtlandt Commission Report (1983) Our Common Future (1987) Earth Summit (1992) Rio Declaration on Environment and Development (1992) Agenda 21 (1992) Convention on Biological Diversity (1992) Lisbon Principles (1997) Earth Charter (2000) UN Millennium Declaration (2000) Earth Summit 2002 (Rio+10, Johannesburg) UN Conference on Sustainable Development (Rio+20, 2012) Sustainable Development Goals (2015)
Category Lists Science Studies Degrees


General	Abiotic component Abiotic stress Behaviour Biogeochemical cycle Biomass Biotic component Biotic stress Carrying capacity Competition Ecosystem Ecosystem ecology Ecosystem model Green world hypothesis Keystone species List of feeding behaviours Metabolic theory of ecology Productivity Resource Restoration
Producers	Autotrophs Chemosynthesis Chemotrophs Foundation species Kinetotrophs Mixotrophs Myco-heterotrophy Mycotroph Organotrophs Photoheterotrophs Photosynthesis Photosynthetic efficiency Phototrophs Primary nutritional groups Primary production
Consumers	Apex predator Bacterivore Carnivores Chemoorganotroph Foraging Generalist and specialist species Intraguild predation Herbivores Heterotroph Heterotrophic nutrition Insectivore Mesopredators Mesopredator release hypothesis Omnivores Optimal foraging theory Planktivore Predation Prey switching
Decomposers	Chemoorganoheterotrophy Decomposition Detritivores Detritus
Microorganisms	Archaea Bacteriophage Lithoautotroph Lithotrophy Marine Microbial cooperation Microbial ecology Microbial food web Microbial intelligence Microbial loop Microbial mat Microbial metabolism Phage ecology
Food webs	Biomagnification Ecological efficiency Ecological pyramid Energy flow Food chain Trophic level
Example webs	Lakes Rivers Soil Tritrophic interactions in plant defense Marine food webs cold seeps hydrothermal vents intertidal kelp forests North Pacific Gyre San Francisco Estuary tide pool
Processes	Ascendency Bioaccumulation Cascade effect Climax community Competitive exclusion principle Consumer–resource interactions Copiotrophs Dominance Ecological network Ecological succession Energy quality Energy systems language f-ratio Feed conversion ratio Feeding frenzy Mesotrophic soil Nutrient cycle Oligotroph Paradox of the plankton Trophic cascade Trophic mutualism Trophic state index
Defense, counter	Animal coloration Anti-predator adaptations Camouflage Deimatic behaviour Herbivore adaptations to plant defense Mimicry Plant defense against herbivory Predator avoidance in schooling fish


Population ecology	Abundance Allee effect Consumer-resource model Depensation Ecological yield Effective population size Intraspecific competition Logistic function Malthusian growth model Maximum sustainable yield Overpopulation Overexploitation Population cycle Population dynamics Population modeling Population size Predator–prey (Lotka–Volterra) equations Recruitment Small population size Stability Resilience Resistance Random generalized Lotka–Volterra model
Species	Biodiversity Density-dependent inhibition Ecological effects of biodiversity Ecological extinction Endemic species Flagship species Gradient analysis Indicator species Introduced species Invasive species / Native species Latitudinal gradients in species diversity Minimum viable population Neutral theory Occupancy–abundance relationship Population viability analysis Priority effect Rapoport's rule Relative abundance distribution Relative species abundance Species diversity Species homogeneity Species richness Species distribution Species–area curve Umbrella species
Species interaction	Antibiosis Biological interaction Commensalism Community ecology Ecological facilitation Interspecific competition Mutualism Parasitism Storage effect Symbiosis
Spatial ecology	Biogeography Cross-boundary subsidy Ecocline Ecotone Ecotype Disturbance Edge effects Foster's rule Habitat fragmentation Ideal free distribution Intermediate disturbance hypothesis Insular biogeography Land change modeling Landscape ecology Landscape epidemiology Landscape limnology Metapopulation Patch dynamics r/K selection theory Resource selection function Source–sink dynamics
Niche	Ecological trap Ecosystem engineer Environmental niche modelling Guild Habitat Marine Semiaquatic Terrestrial Limiting similarity Niche apportionment models Niche construction Niche differentiation Ontogenetic niche shift
Other networks	Assembly rules Bateman's principle Bioluminescence Ecological collapse Ecological debt Ecological deficit Ecological energetics Ecological indicator Ecological threshold Ecosystem diversity Emergence Extinction debt Kleiber's law Liebig's law of the minimum Marginal value theorem Thorson's rule Xerosere
Other	Allometry Alternative stable state Balance of nature Biological data visualization Ecological economics Ecological footprint Ecological forecasting Ecological humanities Ecological stoichiometry Ecopath Ecosystem based fisheries Endolith Evolutionary ecology Functional ecology Industrial ecology Macroecology Microecosystem Natural environment Regime shift Sexecology Systems ecology Urban ecology Theoretical ecology
Outline of ecology

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