Blue TansyBlue Tansy essential oil, which comes from the annual yellow flowered Mediterranean plant, is high in chamazulene and sabinene. An important oil in the doTERRA Deep Blue blend, Blue Tansy is soothing to mind and body. Description Blue Tansy, also referred to as Moroccan Tansy, is an annual yellow flowered Mediterranean plant found in northern Morocco. Chamazulene, a chemical component in Blue Tansy, provides the characteristic indigo color and is