Hi Pwinjet,
Shimanishiki can have single colored blooms, and as the plants get older the blooms become more streaked. My Sn did had blooms with 1 color the 1st year. Last year it had 3 blooms, 2 were a single color, and the 3rd bloom had 2 colors.
Your bloom is beautiful, and I look forward to seeing your blooms mature next year.
