ABSTRACT

Ecological management of soft landscaping and green roofs or walls requires the nurturing of the flora and fauna that grow and frequent the site through sustainable landscape maintenance. This should be reflected in a site Biodiversity Action Plan (BAP) that links with the neighbouring ecosystems and the local BAP. In the USA, the Northeast Organic Farming Association (NOFA) has developed standards that have been recognized internationally as setting a benchmark for ‘organic land care’, which it defines as

a sustainable ecological landscaping system that promotes and enhances biodiversity, biological cycles, and soil biological activity. It is based on minimal use of off-site inputs and on management practices that restore, maintain, and enhance ecological harmony and beauty in urban and suburban landscapes and gardens. ‘Organic’ means landscaping with no synthetic pesticides of any kind (insecticides, herbicides, fungicides, etc.) and with no synthetic fertilizers or soil amendments. 1