Avedon - It's good to see your photo of Sweeten Creek. I added it last fall and mine is just now scaping. It's a pretty bloom. I had expected it to be a darker yellow though - more the color of your Imperial Lemon. What makes Imperial Lemon your favorite yellow? I think I remember seeing your gorgeous clump shots of it in past years. Should that be Small World Snow Owl in your photo. I think we both that one the same year. Mine died in a pot. I recall for a near white, it had quite a bit of pink in the flowers. Did it ever whiten up more for you?