Double Red Begonia: When it comes to a consistent display of vibrant, striking flowers, double begonias reign supreme. Arrange them in clusters along your garden borders to breathe life into lackluster areas, use them as compact bed fillers, or cultivate them in pots. As a recent addition, the mixed Double Red Begonias offer a range of red blooms to enhance your garden's charm and captivate onlookers with their rich color.