Dill is an annual herb that is part of the celery family, Apiaceae , and can be replanted quite easily and successfully. In Arabidopsis plants, auxin, gibberellin and ethylene interact with jasmonic acid JA to alter stamen production Song et al. A herbicide like 2,4-D decays in as soon as four weeks, but you may have to wait for six months to plant grass seed on a lawn treated with Atrazine herbicide.  Source: <a href=https://lawschoolnumbers.com/Ashtybarks>https://lawschoolnumbers.com/Ashtybarks</a>