(1) Background: Black plastics pose a general problem in sustainability issues, as the recycling is hampered by the black colour disguising the type of plastics in the NIR scanner on the garbage sorting belt, as the black colour absorbs NIR radiation. Sorting flower/plant pots suffer from their additional soil contamination in the strive for sustainable flower production in horticulture. As these black plastic flowerpots are currently rarely recycled, a study was instigated of reusing them based on Heino Schwarz’s innovative idea. (2) Methods: In the first step, the carbon footprint was calculated for the flowerpots of two sizes employed in the nursery, their customised production from virgin polypropylene and the delivery from the Netherlands to the nursery in Bavaria. In step 2, the carbon footprint was calculated based on PAS 2050-1 for the number of flowerpots in circulation and return rates in 2019 and in 2020 to assess the GHG saved by the innovation. (3) Results: The innovative concept of Heino Schwarz is a discount on returning the customised used flowerpots, with a 40% increase from 24,533 returned flowerpots in 2019 to 39,797 in 2020. This shows the increasing acceptance and environmental awareness of the consumer and the great success. (4) Conclusions and outlook: The present case study has shown that innovative approaches such as discounts for reused/returned flowerpots of the Schwarz nursery can save 3.85–4.56 t CO_2eq, a valuable contribution to reducing GHG emissions, creating environmental awareness among the consumers and building a close B2C relationship. The amount of CO_2eq saved is equivalent to ca. 40% of the annual carbon burden of a European/German citizen or ca. 23,000 km driven in a private vehicle, the average mileage driven privately in two years.

中文翻译：

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通过花盆退款策略减少可持续园艺中一次性塑料的创新策略

(1) 背景：黑色塑料在可持续性问题中是一个普遍问题，因为黑色会在垃圾分类带上的 NIR 扫描仪中伪装塑料类型，从而阻碍了回收利用，因为黑色会吸收 NIR 辐射。分拣花盆/植物盆会遭受额外的土壤污染，以争取园艺中的可持续花卉生产。由于这些黑色塑料花盆目前很少被回收利用，因此基于 Heino Schwarz 的创新理念发起了一项重新利用它们的研究。(2) 方法：在第一步中，计算了苗圃中使用的两种尺寸的花盆的碳足迹，它们是用原生聚丙烯定制生产的，以及从荷兰运送到巴伐利亚苗圃的。第二步，根据PAS 2050-1，计算2019年和2020年流通中的花盆数量和回收率的碳足迹，以评估创新节省的温室气体。(3) 结果： Heino Schwarz 的创新理念是定制二手花盆返还折扣，从 2019 年的 24,533 个返还花盆增加到 2020 年的 39,797 个，增幅为 40%。巨大的成功。（四）结论与展望：本案例研究表明，施瓦茨苗圃重复使用/回收花盆折扣等创新方法可以节省 3.85-4.56 吨二氧化碳_当量，这对减少温室气体排放、提高消费者的环保意识和建立密切的 B2C 关系做出了宝贵贡献. 节省的 CO _2eq量相当于约。欧洲/德国公民或约 40% 的年度碳负担。私家车行驶23000公里，两年私家车平均行驶里程。