The aim of this research is to investigate the preschool teachers' use of school gardens in Turkey. The reason for this is that outdoor areas are the unique learning and developing environments for children due to yielding children to have developmental and learning opportunities (Bilton, 2010). However, outdoor activities are not enough emphasised in the latest preschool education programme, and such activities are left to teachers' initiatives (Ministry of National Education, 2013). To this end, the descriptive survey model was used to collect data from 156 preschool teachers from the different regions of Turkey via questionnaire. These collected data was analysed via SPSS 18 for windows. As a result, it was found out that there are some points with regard to using school garden, and there are also some significant factors, which lead teacher not to use school garden more such as lack of materials, types of grounds.