There are lots of plants I don't like and would not have in my garden. I'm not keen on the regular for Photinia Red Robin, but I had until I moved house a couple of years ago, a really nice variegated one called pink marble. I don't like the box standard Philadelphus, Hypericum, or the low growing rock garden type of sedums. Don't like any type of arum, because I think the "spathes" are ugly. There are lots I don't like because of the smell such as Virburnum Tinus, which smells like dirty dogs, likewise Hawthorn and Rowan trees, which smell horrible too. Don't like the smell of the flowers on the bog standard dark green privet.