Well... Sort of, but not exactly. A plant (as in, one plant) doesn't really adapt like that. Over the course of generations, plants adapt/naturalize. With each generation, the individuals that are better able to deal with the local environment are thus better able to live long enough to breed and make descendants. Those descendants would be more likely to carry the genes that allow them to survive/thrive in the environment. Those that carry them will be better able to make more descendants, et cetera. This process can be helped by man if a person selects "hardier" subjects and kills - or prevents from breeding - the others. Conversely, with the increasing popularity of indoor gardening and seed breeders who cater to people who are looking for bigger, faster, stronger... The process can actually be hurt if the breeders concentrate on those traits to the exclusion of others.
And another landrace disappears, falling in the forest where no one is able to hear its dying screams.
But if you were inferring that someone could keep a mother, put a clone in a place that has an environment that it is not compatible with, and that if the person keeps putting clones from the same mother (as in, a plant) that eventually they will discover that the clones will start doing well in that environment... Then I disagree.
But I might well have misread your post (and if I did, I apologize). Been kind of stressed and not sleeping lately. Can't be helping my practical intelligence, lol.