We gardeners are always on the lookout for the next great plant. White candles (Whitfieldia elongata) may be just that. It is a perfect flowering shrub: broad-leaved evergreen foliage and plentiful white-flower spikes, 8 inches tall, blooming almost continuously. Sure, it's tender, best as an outdoor shrub for Zones 9+ or as an evergreen conservatory plant or houseplant in cooler climates. Or use it in mixed flower containers for spring-fall performance in Zones 5-8.