Joe Pye Weed, Eupatorium maculatum. Superb plant with tall, often reddish stems which are topped with large flattened heads of rosy purple flowers during high summer. Beloved by bees butterflies and many other pollinators. Best in sunny position. Average to moist soil. Height 1.8m – 2.1m.
Also known as Eutrochium maculatum Atropurpureum Group.