Diablo Ninebark (Physocarpus opulifolius 'Monlo') is a hardy, upright deciduous shrub (8–10 ft) renowned for its deep burgundy-purple foliage and exfoliating, peeling bark that provides year-round interest. It features clusters of white to soft pink flowers in late spring/early summer, thrives in full sun, and is highly adaptable, drought-tolerant, and low-maintenance. 
Key Features & Care:
Foliage: Intense, dark purple foliage that retains its color best in full sun, though it may turn green in shade.
Flowers & Fruit: Small white-pink flowers emerge in late spring, followed by bright red, berry-like capsules in fall.
Form: A fast-growing, upright, and arching shrub that can be used for hedges, screens, or as a focal point.
Maintenance: Generally easy to grow. Prune in early spring to maintain shape or control size.
Hardiness: Extremely hardy (Zones 3–7) and tolerates varied soil conditions, including dry sites, pollution, and urban environments.
Wildlife: Attracts birds and pollinators.