My mother is a big gardener and also tailors her Garden to the cultivation? and attraction of Butterflies. I’ve tried to do the same to a very small extent in my own yard. I would never presume to call my efforts a “garden” I just don’t put that much effort into it.
My main reason for doing this at all is mostly for photographic pursuits.
Some Butterfly sites I frequent when the need arrises, mostly to identify butterflies I’ve either seen or taken photos of.