Solens betydelse för skörd i den ätliga trädgården

Sammanfattning: New sustainable cultivation systems are on the rise where edible perennial plants play a central role. The interest in growing food for the household has increased, perhaps as an effect of increased distrust of food production and a desire to do something good in a climate-threatened world. But to grow we are completely dependent on sunlight and in today’s small gardens it is not always possible to influence how much sunlight enters the garden. The question that is studied in this work is whether it is possible to create a permanent garden, with the main purpose of contributing with harvest to the household, in gardens that are limited in size and have different access to sunlight. The first part of the study concerns sunlight and how different the light quality is in Sweden during the year. Furthermore, how and why plants have adapted to different lighting conditions is studied. In a case study, the light is analysed in two example gardens, where the availability of light is different, and then a plant proposal has been created that is adapted to the lighting conditions in the examples. The conclusion of the work is that it is quite possible to create an edible garden both in gardens with low light conditions and high light conditions but the type of edible plants is different. In gardens with more shade, it is mainly plants that can supply green edible parts, such as leaves, which are dominant while in a sunny garden the conditions are better for fruit-bearing plants. Creating a permanent edible garden requires that plants must be included, which are usually classified as ornamental plants. It has also been discovered that literature often describes soil conditions to a much greater extent than light conditions, although the availability of sunlight is often much more difficult to influence.