Heuchera ‘Blackout’
Overview
Uses: Shade gardens, woodland borders, edging, groundcovers, and container plantings.
Benefits: Deep burgundy to near-black foliage creates dramatic contrast in shaded landscapes. Compact and dependable, this selection offers season-long foliage interest with delicate summer blooms.
USDA Hardiness Zones: 4–9
Sun: Partial Shade to Full Shade
Life Cycle: Hardy Perennial
Growth Habit: Clumping, Mounding — low rosette of layered foliage.
Bloom Color: White to Light Pink
Foliage Color: Deep Purple to Near Black
Mature Height: 10–12"
Mature Width: 16–20"
Bloom Season: Early to Mid Summer
Growth Rate: Moderate
Summary
Velvety, near-black foliage brings bold contrast to shaded spaces.
Heuchera ‘Blackout’ is prized for its intensely dark foliage, which forms a dense mound of rich burgundy to nearly black leaves. The dramatic color pairs beautifully with silver, chartreuse, and lighter green companions.
In early to mid-summer, airy flower stems rise above the foliage, adding a soft contrast to the dark leaves. Its compact size makes it ideal for edging pathways, layering in woodland plantings, or softening containers.
This selection provides reliable foliage interest throughout the growing season and serves as a strong structural element in shade-focused designs.
Care
Blackout Coral Bells Care
Plant in partial to full shade. In cooler climates, morning sun is tolerated, but protect from strong afternoon exposure.
Prefers well-drained soil with consistent moisture. Water regularly during establishment and during extended dry periods.
Apply a
slow release fertilizer
in spring to support healthy foliage and flowering.
Remove spent flower stems after blooming if desired. Cut back older foliage in early spring before new growth emerges.
Container Growing: Performs well in containers with high-quality potting soil and proper drainage. Monitor moisture carefully, as containers dry more quickly than in-ground plantings. Plants hardy in the ground may require winter protection when grown in containers in colder zones.
Size
What Size is the Blackout Coral Bells for Sale Online?
Plants ship in a greenhouse-grade grow pot at an actively growing stage. Size at shipment varies seasonally. For current sizing details, please
contact us
.
How Large Does Blackout Coral Bells Grow?
At maturity, this perennial typically reaches 10–12 inches tall and spreads 16–20 inches wide, forming a dense, low mound.
Additional Information
What are some common names for this plant?
This plant is commonly known as Coral Bells.
Is Blackout suitable for shade gardens?
Yes. Its dark foliage is especially effective in shaded borders and woodland gardens. Explore additional shade-tolerant options in our
Perennials and
Groundcovers collections.
Does Blackout Coral Bells attract pollinators?
The airy summer blooms can attract small pollinators. For more pollinator-friendly selections, browse our
Native Plants of North America collection.
How does Blackout compare to other Heuchera varieties?
This selection is valued for its especially dark foliage color, which creates stronger contrast than many lighter or silver-toned coral bells.
