Organic Arugula Seeds 'Roquette' The bag of soil you grab at the garden center matters more than most people think because soil and potting mix and seed starting mix aren't the same thing, and using Grow Cube Modular Indoor Grow Light 3 stack Ecoworm Soil Extract Concentrate Organic Vermicompost Fertilizer for Fruits & Vegetables 35 fl oz (Makes 53 gallons) Growing Vegetables Indoors Under LED Grow Lights Gardener's Supply. Clearance & Sale Items Root & Vessel