I am sorry but some of the information contained above needs correcting. 'Zada Mae' was hybridized in 1982, but the Kropf in the AHS database refers to Frank Kropf, who is now deceased. I believe Frank Kropf lived in either MO or KS, and Robin Calderon was his protege. She registered some of his cultivars after he died. I can't remember exactly how long ago he died, but it was around 2006 or 2007 . Robin posted it on the robin, and right after he died, she nominated some of his cultivars for AHS awards, as he had been ill for a while and hadn't nominated any. I believe this was one that she nominated ( when I was AHS awards chair in 2008.) Robin used to grow a lot of Frank's plants and sell them.
