 This one will produce a lot of weed seeds. The weed we don't like is living among the shallots we do on Sassafras Creek Farm, 50 acres in St. Mary's County, Maryland. All the crops from arugula to zucchini are certified organic, which means no synthetic herbicides to keep those weeds from growing. And weeds are expensive. This is one of the reasons why organic foods cost so much, is that do your best you can, and you're still going to be hand weeding. David runs the farm with his wife, Jennifer.