The garden-based learning approach is becoming more popular as mediums where students can learn in an interdisciplinary manner. Garden-based learning is one of the important approaches and the teacher's attitude towards garden-based programs is very important for the success of the program. Therefore, in the present study, it was aimed to develop a scale to determine teachers' attitudes towards garden-based learning, which is titled "Teachers' Attitude Scale Towards Garden-Based Learning Approach". After a 42-item scale trial form was created according to expert opinions, it was applied to teachers working in different parts of Turkey. Results of the multi-step EFA analysis conducted invalidity studies showed that the 20-item scale was collected in 3 dimensions as a result of the load values of the items belonging to each dimension of the 42-item scale. As a result of the analysis, it is seen that the dimensions in which the 20-item scale is gathered under three dimensions, explain 37.11%, 12.46%, and 12.19% of the total variance and 61.76% of the total variance, respectively. Reliability coefficients were calculated as Cronbach's alpha 0.94 for the first dimension, 0.79 for the second dimension, and 0.70 for the third dimension. The Cronbach's alpha value for the whole scale was found to be 0.91. As a result of the study, it was revealed that the "Attitude Scale of Teachers towards Garden-Based Learning Approach" is a valid and reliable scale measuring teachers' attitudes towards garden-based learning.