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Simpler’s-joy or blue verbena is a 2-5 ft., stout-stemmed perennial with numerous, pencil-like flower spikes branched upwards like the arms of a candelabra. Each flower spike has a ring of blue-purple flowers; the flowers at the bottom of the spike bloom first, and the ring of flowers appears to advance upward to the tips of the spike. Stiff, pencil-like spikes of numerous small, tubular, blue-violet flowers are at the top of a square, grooved stem and its branches. An attractive perennial, it has flowers on showy candelabra-like spikes. Bumblebees are among the important pollinators. In ancient times the plant was thought to be a cure-all among medicinal plants and the genus name is Latin for sacred plant.