New from the late Jim Barlup, 'Sun Music' will make a melody in your garden with its sunny yellow flowers that cover the plant in late April. The plant has medium green leaves on a compact plant that sets buds prolifically, making a stunning floral show every spring. The yellow flowers have a bit of red spotting in the upper lobe, adding to its charm. When 'Sun Music' is in full bloom, I stop every time to look to see what variety it is. Fabulous! Hardy to zone 7.