Although its brilliant colouring is more like that of a tropical hibiscus, Inner Glow is a hardy variety that can tolerate anything winter dishes out as far north as growing zone 4! Whether you use it in a border or as a specimen planting, it is sure to brighten and beautify its surroundings. Its olive-green leaves set off rich rose-pink flowers featuring a deep red centre with a lavender-purple halo. Emerges later in spring than most perennials. Produces more blooms with each passing year.