Physocarpus – Coppertina® – Ninebark – Physocarpus opulifolius

Garden Height
72 - 96
Spacing
84 - 120
Spread
72 - 96
Habit
Upright
Container Role
Thriller
Flower Size
Tall
Flower Colors
White
Light Code
Y
Light Level
Sun
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Features:

Easy to grow summer color!

A new cross between Dart's Gold and Diabolo that flushes an attractive copper in spring and transforms to a rich red in summer. Soft pink flowers line the gently arching branches in early summer. This durable, cold-hardy plant does well in exposed sites. It was selected as the 2011 Cut Flower of the Year by the ASCFG.

  • Drought Tolerant
  • Native to North America
  • Fall Interest
  • Foliage Interest

Maintenance Notes:

Adaptable to difficult situations. Withstands acidic and alkaline soils. Medium moisture, can tolerate dry conditions once established. Best if pruned immediately after blooming. Best in open areas with good air circulation to prevent foliage problems. Will benefit from a good hard pruning as a young plant. Fertilize in early spring by applying a slow release fertilizer specialized for trees and shrubs. Follow the label for recommended rate of application.

Uses Notes:

Great foliage stunner in the landscape. Good in groupings and mass planting, perennial and shrub borders. This is a very tough plant that is ideal for difficult sites.

Maintenance Category: Moderate

Water Category: Average

Blooms On: Old Wood

Bloom Time: Mid Summer

Hardiness Zones: 7b

Flower Form: Mass Planting

pH: B - pH 5.8 - 6.2

EC (2:1 Extraction Method): 0.6

Fertilization: 150 - 200

Light Requirements: High

Water Requirements: Moderate to Moist

Rooting Out Temperature: 65 - 72° Fahrenheit

Growing On Temperature: 60 - 65° Fahrenheit

Holding Temperature: 40 - 50° Fahrenheit

Planting and Timing Information:

Spring to Fall Finish, 1 ppp

Finishing Times [weeks]:

6" and Gallon Pot: 2.25": 8-10 weeks; Quick Turn: 4-6 weeks
10-12" and Two Gallon Pot: 2.25": 12-16 weeks

Pinching and Growth Regulators:

Frequent light pruning will produce a full bodied habit, similar to producing a Spiraea like mounding container.

Pest and Disease Management:

Powdery Mildew and Fusarium can be problematic. Spider Mites are also common and should be treated as needed.

Grower Tips:

Coppertina is showing more tolerance for high summer temps. The Fall color on this plant is outstanding, echoing the bright colors exhibited in the Spring.

Finishing cool outdoors will intensify foliage color. -plants will tend to defoliate when dried down manage moisture carefully.

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