Phil, this is a very interesting article! I really enjoyed reading. I can't believe it is from the year 1953!
...and Polychrom is already there...BTW, do you have an airlayer of Polychrom that I can purchase??
Nice reading, Phil. Wish crotons and croton hybridizing were getting more attention now. We need new and better cultivars with better habits (full to the bottom and tolerant of more conditions).