User:Mueller felix
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Three Zone Gardening
The concept of the three-zone garden, also known as Hortus, is a combination of permaculture and wildlife garden elements. It is not to be confused with the USDA Plant Hardiness Zone 3.
The aim of Three-Zone-Gardening is to create a garden that contributes to strengthening local biodiversity and allows food to be grown sustainably without the addition of external resources such as fertilizer. The model is adapted to a temperate climate and always consists of the following three zones: buffer zone, hotspot zone and yield zone. The species-rich hotspot zone, with its poor soils, supplies the nutrients for the yield zone in which fruit and vegetables are grown.[1] The concept was developed by german nurse and garden book author Markus Gastl.[2][3] In the 'Hortus Network', which he also initiated, over seven hundred gardens that work according to the three-zone model are networked. The Hortus Network is an official project of the United Nations Decade on Biodiversity.[4]