There are other Optimara sites too, like this one:
http://www.optimara.com/optima... or just the field guide:
http://www.optimara.com/optima...
Lowe's and Home Depot sell Optimara's as well as Woodhill Greenhouses out of Canada: woodhillgreenhouses.com
Many of my Optimaras are from leaves. Rita blooms her little heart out. And the blooms change colors! sometimes they are almost white, pink, maroon, thumb print or striped! Today they are light pink and fuchsia chimera.
I have a new crop of leaves from a gal in Texas. I can send pics as soon as I get a bloom.