Diablo Ninebark



Diabolo Ninebark (Physocarpus opulifolius 'Diabolo')
Diabolo Ninebark (Physocarpus opulifolius 'Diabolo') is a dramatic deciduous shrub valued for its deep burgundy foliage, arching branches, and peeling bark that adds texture through winter. One of the first dark-leaved ninebarks introduced to the market, it remains a popular choice for bold contrast and structural interest in shrub borders, screening, and large-scale plantings.
Distinctive Features
'Diabolo' features large, maple-like leaves that emerge deep wine-red in spring and retain their color throughout summer, especially in full sun. In late spring, clusters of soft pink-white flowers bloom in rounded heads that contrast vividly against the dark foliage. As the plant matures, its bark exfoliates to reveal layers of reddish-brown beneath, offering multi-season appeal. With its natural arching habit and commanding presence, it serves as a striking focal point in mixed plantings or as a bold backdrop.
Growing Conditions
- Sun Exposure: Full sun for best color; tolerates partial shade
- Soil: Well-drained soil; adaptable to a wide range including clay and average garden soil
- Water: Moderate; consistent moisture preferred during establishment
- USDA Hardiness Zones: 3 to 7
Ideal Uses
- Focal Point: Deep burgundy foliage stands out in both contemporary and naturalistic designs
- Shrub Borders: Adds rich color and texture alongside lighter-leaved plants
- Screening: Large size and dense branching provide informal privacy
- Foundation Planting: Suits large-scale homes or commercial buildings
- Pollinator Gardens: Attracts bees with its spring flower clusters
Low Maintenance Care
- Watering: Water regularly during the first growing season; more tolerant of dry spells once mature
- Pruning: Prune after flowering to shape or rejuvenate; tolerates hard pruning if needed
- Fertilizing: Feed in early spring with a balanced fertilizer if growth is weak
- Mulching: Apply mulch to retain moisture and reduce weeds
- Disease Resistance: Naturally resistant to common pests and powdery mildew
Why Choose Diabolo Ninebark?
- Bold Foliage Color: Striking deep burgundy leaves add contrast and drama
- Four-Season Appeal: Flowers, foliage, and exfoliating bark keep interest year-round
- Large-Scale Coverage: Fills space quickly for screening or backdrop planting
- Low Maintenance: Adaptable and resilient once established
- Focal Point: Rich color and commanding form create strong visual impact
Physocarpus opulifolius 'Diabolo' brings bold foliage, architectural structure, and lasting seasonal performance to gardens seeking high-contrast color and low-maintenance appeal.

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