So glad to see your MERRY AMIGO in bloom -- mine has not bloomed for me in the two years that I've had it, but I've ordered another rhizome and may move the plant next time around. Yours is beautiful!
Patriotic Heart took three years before it bloomed in my garden, but now blooms reasonably well. My general experience with Maryott iris is that they take awhile to settle in and are never really impressive growers.