Eutrochium purpureum. Joe Pye Weed loves moist soil in full sun to partial shade. It's a tall perennial plant that can reach 2.4m (7.9') tall, with a spread of 1.2m (3.9'). The huge clusters of pink flowers that form from late July to early September are so rich with nectar that the stems can sometimes droop under the weight of them. As a result, this is one of the best choices to attract butterflies, bees, and other pollinators. Cut the tall stems back to the ground level in late winter, and it will fill back in year after year. This lovely perennial is hardy to Zone 4 and is deer resistant. Plant Joe Pye Weed seeds to improve the lot of pollinators in your region.