(syn: Dianthus 'Firewitch') Not only is this German hybrid (Kayser & Seibert Nursery, 1957) one of the bluest-foliaged dianthus, it is also one of the most heat-tolerant and certainly the longest-flowering. I was amazed to find this being sold and used regularly in northern and central Florida. The low-growing mat of narrow, silver-blue foliage is topped in early spring by bright magenta single flowers. For us, Dianthus 'Feuerhexe' flowers sporadically all summer and heavily from October into December...a hummingbird attractant. Even after flowering, the intensely colored foliage makes a great color foil in the garden. For best results, plant dianthus in bright light with well-drained soils. Firewitch hardy pink was selected as the 2006 Perennial Plant of the Year by the PPA.