‘Imogen,’ another shrub rose from English breeder David Austin, has a button eye, like most so-called Old Roses (a class of roses grown before hybrid teas debuted around 1867). Its lemon-yellow buds open to frilly flowers that gradually become cream-colored. Michael Marriott, an Austin rose expert, recommends growing it with soft blue and lilac perennial flowers. 'Imogen's' scent is a mix of fresh apple and almond with a touch of musk and cloves. Grow it in zones 5 to 9 and expect flowers from early summer till frost.