As we know, much soil today is badly polluted with industrial waste and chemicals as well as pathogenic organisms from farms, sewage, and pharmaceutical residuals. Ideally, land that has been harmed by toxins and inadequate management of the environment would be planted with flowers that are not used for either food or medicine. In many cases, the plants themselves would eventually have to be removed. Meanwhile, there are a few plants that are specific for remediation following nuclear contamination, first of which is sunflower. The seeds will remain edible but the stalks and roots will have absorbed the radioactivity and should not therefore be used for composting food crops.