Mustard offers lots of benefits like attractive flowers, pungent greens and best of all spicy seeds.It's an ancient plant which will appeal to contemporary gardeners.The greens are edible,the flowers attractive, and if allowed to seed will self sow to provide plenty of mustard making.Even if you don't use the plant for culinary purposes it can be chopped and dug into the soil as a green manure.Sold per tray , bareroot and sent out  less the tray