Hillside Black Beauty Ninebark (Physocarpus opulifolius 'Hillside Black Beauty')

Hillside Black Beauty Ninebark

Physocarpus opulifolius 'Hillside Black Beauty'

A striking deciduous shrub celebrated for its intense dark purplish-black foliage and peeling bark.

Prefers full sun for the deepest foliage color, but tolerates partial shade.
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Beginner
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Plant Needs

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Sunlight Prefers full sun for the deepest foliage color, but tolerates partial shade.
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Watering Moderate water requirements; quite drought-tolerant once established.
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Temperature Extremely cold hardy, thriving in USDA zones 3-7.
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Characteristics

  • Leaves: Ovate, 3 to 5-lobed with serrated margins; emerges deep purple and matures to a striking near-black hue.
  • Flowers: Dense, rounded corymbs of small, cup-shaped white to pale pink flowers with prominent stamens, contrasting sharply with the dark foliage.
  • Bark: Older stems feature exfoliating bark that peels back in thin, papery strips to reveal reddish-brown inner layers.
  • Fruit: Drooping clusters of inflated, reddish papery capsules that persist into the winter months.
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Care Guide

Watering

Water deeply once a week during active growth and dry spells.

Fertilization

Apply a balanced organic layer of compost or mild fertilizer as new growth appears.. Ninebark is not a heavy feeder; excessive nitrogen can lead to leggy growth and reduced foliage color.

Coffee Ground Compost Tea:Steep a small amount of used coffee grounds in water overnight to create a mild tea. Pour around the base in early spring to support lush foliage growth. Avoid applying raw grounds directly to prevent mold.
Pruning
  • Timing: Prune immediately after flowering in early summer to avoid cutting off next year's buds.
  • Shaping: Lightly trim to maintain a rounded shape and control size.
  • Rejuvenation: For older, overgrown shrubs, cut up to one-third of the oldest, thickest stems all the way to the ground in late winter to encourage vigorous new shoots.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Non-toxic to cats per ASPCA guidelines.

Humans: Generally considered non-toxic to humans, though not intended for consumption.

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Garden Uses & Culture

Culture: In North American landscaping, dark-foliage cultivars like 'Hillside Black Beauty' are highly prized in "gothic gardens" and contemporary designs for providing dramatic contrast against traditional green plants.

Usage: Excellent as a specimen plant, in mixed shrub borders, as an informal hedge, or for erosion control on banks.