Two years ago I planted about a hundred bulbs of Iris reticulata ‘Harmony’ in what I now call the thyme lawn. This week, the first week in August, I counted more than three hundred and fifty flowers out. Iris ‘Harmony’ flowers earlier than others of its kind by about a week. The pale sky blue ‘Alida’ and the rich purple ‘J.S. Dijt’ are only just opening their flowers.