His backstory is really one-of-a-kind. If I recall correctly, he got really into botany because he worked for Union Pacific railroad, and while stopping in a city, would go to the library and checkout different botany books.
I'm not really into botany itself, but I enjoy their rants about how people manage "green" spaces
https://www.youtube.com/watch?v=PUFQouwqbe8
(I love BB)