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What is sustainable style?
CHOOSING A STYLE
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A sustainable garden should be capable of working as an
effective ecosystem, with reduced or minimal levels of intervention.
It is this approach that sets it apart from a traditional garden.
Ecological principles play an essential role in creating
habitats in which planting neighbors thrive, competition
between them is balanced, and species are closely matched
to the prevailing soil and climatic conditions.
SUSTAINABLE GARDENS IN DETAIL
The materials used in a sustainable garden need to be assessed against
a series of criteria. Recycled products are a good idea as they reduce
the exploitation of new resources, but sometimes they have a high
carbon trail, whereas sourcing new timber from managed,
renewable, and, preferably, local plantations may be a better option.
Other factors to consider include the permeability or drainage of
hard-landscaped surfaces. These should be either porous, in order
to top up groundwater, or designed to allow water to run off into a
collection unit, thereby reducing the strain on supplies.
In a sustainable garden, planting is key, and a healthy variety of
wildlife habitats essential. Choose plants that thrive in the prevailing
conditions and complement each other, which in turn will help to
reduce the incidence of pests and diseases, although other forms of
biological control may also be needed. Soil improvers should come
from your own compost heap and organic manures.
GREEN ROOFS
Green roof systems manage rainwater
run-off and provide insulation. Convert
existing roofs using pre-planted sedum
mats. New structures can accommodate
more elaborate habitats.
ENCOURAGING WILDLIFE
Increased diversity is achieved by
creating effective habitats for wildlife.
The more habitats there are, such as old
logs, bee hotels, and insect-friendly
planting, the greater the diversity.
KEY DESIGN ELEMENTS
DESIGN INFLUENCES
The change from purely ornamental planting to the creation of successful
plant communities started when William Robinson (1838–1935) advocated
the integration of native and exotic species, which he called “wilderness
planting”. The development of American prairie planting, championed by
Jens Jensen in the 1920s and ’30s, responded to Robinson’s ideas, and
was later taken up in Europe by the New Perennial Movement. Large drifts
of grasses and perennials, like those seen in the schemes of Rosemary
Weisse in Munich, are typical of this approach. In the UK, the Department
of Landscape Architecture at the University of Sheffield has produced
significant research into sustainable prairie and meadow planting.
Rosemary Weisse’s garden at Westpark in Munich.
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