Unique blooms continue appearing from early summmer to fall, attracting hummingbirds. What's most unique about them is their form–as a double-blooming begonia, the flowers form dazzling rosettes, the color enhancing the effect. Bouton de Rose is the height of romance in a hanging basket. There are a lot of places to grow it, actually. The low-growing, disease-resistant foliage performs beautifully in front borders.