Sure, you can blend things after they are already grown and harvested and you can use all sorts of chemical additives that will bring out certain flavors and alter others but you can't feed tomato plants or green bean plants or celery plants or lettuce plants something that will make the freshly picked vegetables taste like apples or peaches or pears.
People have been trying to do that sort of thing for decades and decades, and likely longer, and it has never worked. I knew people in the late 60's and 70's that tried just about everything imaginable and their herb never came out tasting like they had hoped and some people killed plants in the process of trying.
Something with an intense enough odor/flavor might penetrate the green plant matter some and in doing so slightly alter the flavor but nothing someone can add will alter the terpenoids that already exist. They will not suck in/draw in some added flavor or odor and change their chemical makeup.