Floral foam (IMAGE) RMIT University Caption Each floral foam block is equivalent in weight to around 10 plastic bags. Credit Image: Rita Feldmann, Sustainable Floristry Network Usage Restrictions Credit Rita Feldmann, Sustainable Floristry Network License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.