Pollinators can't resist the nectar-rich blooms of Verbena. Masses of tiny nectar-rich vervain blooms are densely packed into dainty clusters, making this perennial a real bee magnet. You'll also often find butterflies use them to rest their wings. These drought tolerant hardy perennials tolerate poor, free draining soils. If you have a gravel area, shingle driveway or dry soil in your borders, purpletop vervain will settle in well and return year after year! Try combining Verbena plants with ornamental grasses for a dreamy, low maintenance prairie style display.