Professor Don Smith mentioned that in his 2004 APS Bulletin articles:
http://www.yellowpeoniesandmor...
" I am also quite delighted to report that IMPOSSIBLE DREAM bloomed much more double in its second year of bloom than in its maiden bloom season. As I have reported in the past, this is a common characteristic of the intersectional hybrid group as a whole. This year several flowers were fully double with numerous central petals that completely obscured the carpels and anthers. Although some flowers retained the full-petaled (45-50 petals), open-center, semi-double form from last year, I believe that the more double form will become the predominant flower type as this plant reaches full maturity. "
