Narrowleaf Sunflower (Helianthus angustifolius) perennial wildflower that grows about 3-6ft tall, blooming in late Summer-Fall. Plant in full to part sun in moist soil. This plant readily colonizes, and can fill in empty space easily. It can be pruned to create a smaller, bushier form. These are particularly attractive to pollinators, and put on a spectacular show at bloom time!