Firethorn Pyracantha "Orange Glow", Orange - Hardy plantNeed a versatile hedge plant? The firethorn "Orange Glow" fits the bill. Of course, the plant makes an excellent hedge. The firethorn is also a wonderful climbing plant for dressing up a bare wall. The "Orange Glow" grows exceptionally well in a pot, too. This shrub blooms in May and June. That is when it reveals its fragrant, white flowers. These flowers are very popular with butterflies and bees. In the autumn, the flowers turn into orange berries.