The best way to learn is in the field. In this case, literally in the field. Those plant names are Irish Gaelic if anyone is feeling nerdy and wants to look them up.
Also, page 69. Huh huh huh huh…
Check out sketches and behind the scenes work at my tumblr – RootandBranchSketchblog
Comic updates Mondays, Wednesdays, and Fridays.