Had something like this once, a character who was a gardener by hobby, and on revision of the novel, I was pleased to notice that the description of greenery chiefly came from his POV. (I added some filigree about his noticing that flowerbeds need dead-heading.)
A boatman is going to notice how a boat would -- or would not -- float down the river sprawling there. A builder is going to notice the buildings, and whether they are well-built, and what sorts of maintenance have been stinted on. And an agriculturally minded wizard is going to notice northerly slopes where orchards can go, and water flow, and ditching. . .and probably lots and lots more.
You know, most works that touch on medieval agriculture deal heavily with what the men do, and not with what the farm land itself looked like.
