HTH, I am not sure that I can say I developed them, as they were the result of a natural cross in my water tub. These were from seeds of my Green Smoke. I did not get them elsewhere. Most of the blooms have had a tinge of purple on the tips or petal edges, but not all. The petals of the blooms vary in length and width, as well as color, but so far most have been primarily a shade of yellow. Hope this helps.