Escaped garden plants are wild. There are clear cases and there are gray areas, but one of the values of iNat is to track escaping plants, so absolutely mark them wild.
There are previous discussions about the borderline cases, such as reseeding garden plants or garden plants expanding vegetatively. I believe the line is drawn when such propagation expands beyond the garden where it was planted. But the vast majority of naturalized plants such as the invasive or introduced species you mentioned should be marked as wild.
EDIT: One thread to review on this is: https://forum.inaturalist.org/t/wild-vs-captive-cultivated-gray-areas/39882