I've got really bad eyesight & I can usually tell from quite a distance, also they fade because of the sunlight & don't look to good pretty quickly. Real multiply by themselves, change the look of the garden throughout the seasons, produce scent, attract pollinators & other wildlife, reduce CO2 , lock in carbon, can be given as gifts, brought inside to add colour & scent, gardening is also good for mental health & gentle physical exercise (if you don't let small jobs turn into big jobs) & you can also grow your own organic food too.