Meh, depends on the plants. I don't really have any plants the bloom profusely for long seasons (perhaps only Echinacea, but those don't really need to be deadheaded either). Nothing I have self-seeds aggressively in my mulch beds. I can't even grow most traditional types of flowers because deer will just eat them, lol. I very much dislike the look of meticulously shaped shrubs, and many plants have attractive natural growth habits, IMO.