Gardening is a good basis for cooperation. Hobby gardeners on rented urban lots can easily connect with each other at the beginning and the end of the season, as well as various seasonal tasks. In some places, several renters even share the same composting site. The fact that the care for the circulation of good substances is part of the ecologically oriented development has increasingly been brought to attention in larger communities. Composting in households is supported by several European countries, and integration projects for composting are also being developed. In the Croatian town of Osijek, the citizens have been distributed 3500 household composters so that the collected biological waste is of a higher quality. Wherever we live, we share the environment with our neighbours, roommates and, last but not least, future generations. Through community approaches towards gardening, we can promote ecologically responsible cooperation. With community biological waste, we can make sure that the nature and plants, which are owned by the community, are taken good care of. Have you ever considered fertilising the lawn and that little flowerbed in front of the block of flats with the compost made by the households in multi-apartment buildings? Perhaps you could also plant a fruit tree together?