Physocarpus opulifolius 'Summer Wine®' (Seward)

Growing and Maintenance Tips:

Ninebark grow best in a well-drained, fertile soil, however, they are very hardy and adaptable and will tolerate a wide range of soil types and conditions. Prune by thinning at the base to reduce mildew or full rejuvenation by pruning down to ground (coppicing) in late winter. 

This cultivar is often offered as a trained tree form. Prune by thinning or rejuvenate by pollarding.