The effect of three different volumes of indoor greenery on employee well-being

Purpose This study aims to explore the effect of different volumes of indoor greenery on perceived stress, stress, perceived productivity, productivity and perceived workplace satisfaction to support employees’ well-being. Design/methodology/approach In a cross-over experimental design, a homogeneous group of students was randomised in different orders where each participant experienced the same three conditions. Different volumes of indoor greenery were added to the experiment room (0%, 0.5% and 8%). With a Fitbit, sudoku and a questionnaire, the five variables were measured. Findings Findings show that perceived stress and heart rate (physical stress) are lower in the 8% condition. Productivity scores did not improve significantly, however perceived productivity did in the 8% condition. Positive trends could be seen for the variables in the 0.5% condition. Furthermore, 2/3 of the participants preferred the 8% condition, whereas the other 1/3 preferred the 0.5% condition. Overall, 1/3 of the participants mentioned that their optimal volume of greenery would be more than 0.5% but less than 8%. This research shows that the implementation of 8% indoor greenery contributes to a happier and more relaxing office place where employees get the feeling of being less stressed and more productive. Research limitations/implications This research found that the largest volume of plants used (8%) has the most positive effect on the variables studied in this research. This study shows that participants’ heart rate, and therefore physical stress, became lower in the 8% condition. In this 8% condition, participants experienced less stress and perceived themselves to be more productive. Besides, 2/3 of the participants preferred being in the 8% condition, suggesting that after adding this volume of indoor greenery employees will be more satisfied with their workplace. Practical implications Where previous research discovered that indoor greenery has a positive effect on variables like (perceived) stress, (perceived) productivity and perceived workplace satisfaction, this research also provides support for the effect of different volumes of indoor greenery. Results obtained by the spatial coverage ratio approach can be easily applied to future research and practice. Social implications Indoor greenery can contribute to making the office a happier and more relaxing place where employees get the feeling of being less stressed and more productive which in the long term might contribute to the overall well-being of employees. Originality/value To the best of the authors’ knowledge, this is the first study focusing on the effect of different volumes of indoor greenery on these five variables.