I disagree some. First, Dr Brown and Cleo had a much better collection of crotons several years ago. But over time, Cleo lost some interest, and was busy setting up his new nursery and out hustling landscape jobs. Also, a few years back, many hurricanes passed through their area and blew many larger trees down, therefore loosing alot of his canopy for the crotons. Earlier this year, many of us all experienced some of the coldest weather ever, and more damage was done. And remember, B. Frank is over 90 years old, and is unable to plant new varieties to replace many,many that have been lost.
But....the good news is, there are collectors that have been out and about trying to locate many varieties and so now, with a little bit of searching, a phone call or two, attending the croton garden tours ( which includes an auction of plants ), and hitting the plant sales, will no doubt enrich your collection. Most of the named varieties in the book can be found, unfortunately, some have been lost, probably forever.