I don't know what the villagers see, I feel that they see what we see. I've had plants that normally sell slow and I've either changed the flower or color and I felt that they sold faster, or maybe it's just me.
Yes Lucas there is a guide for doing mods
written by Charley. He also has some great mods too.
His Blue dead leaf mod &
His yellow and Turquoise dead leaf mod also
His white and Gray dead leaf mod &
His Autumn Plant Tycoon Mod then
Charley's Colourfully Crazy Mod next
Charley's Christmas mod plus
The Halloween mod