Around 40 per cent of Germany’s declining and endangered native plant species could be planted in private and public green spaces, making them suitable for conservation gardening. This is the conclusion reached by researchers from the German Centre for Integrative Biodiversity Research (iDiv) and Leipzig University, who have collected the latest data on endangered Red List species in all 16 of Germany’s federal states. Their findings have now been published in the journal Scientific Reports. The data collected has been used to develop an app that provides the public with lists of plants suitable for conservation gardening in each federal state.