Alphabetical Plant Listing

Heuchera 'Obsidian' (Coral Bells)

Coral Bells 'Obsidian', Alum Root 'Obsidian', Coral Flower 'Obsidian'


Ranked as one of the best Heuchera, award winning Heuchera 'Obsidian' is a particularly attractive variety of Coral Bells with its foliage of lobed, rounded, long-petioled, rich dark purple to almost black, shiny leaves that remain dark throughout the growing season and do not fade.

  • 'Best New Plant' Award at the 2008 Woking Nursery Exhibition in England.
  • In early-mid summer, panicles of small, bell-shaped, creamy-white flowers bloom on slender stems rising up to 24 in. (60 cm) above the semi-evergreen foliage. This sport of Heuchera 'Obsidian' is prized by gardeners for its vigor and consistent performance under a variety of garden conditions and good resistance to powdery mildew.
  • This clump-forming perennial forms basal mounds, up to 10 in. tall (25 cm) with a spread of 16 in. (40 cm). This sturdy performer is not only easy to grow, but also requires little maintenance and is pest and disease free!
  • Performs best in part shade, in richhumusymedium moisturewell-drained soils. If grown in full sun, make sure the soil remains consistently moist or the foliage might decline. Thrives in dry shade, once established. It is attractive to butterflies and often ignored by deer.
  • A spectacular addition to bedsbordersrock gardenswoodland gardens and is ideal as groundcoveredger along paths or in containers. Fabulous when planted in groups!
  • Divide clumps in spring every 3-4 years.
  • Remove stems of faded flowers to promote additional bloom. Apply winter mulch after the ground freezes to help prevent root heaving.

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Requirements

Hardiness 4 – 9
Heat Zones 1 – 8
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Heuchera - Coral Bells
Exposure Full Sun, Partial Sun
Season of Interest Spring (Mid,Late)
Summer (Early,Mid,Late)
Fall
Height 10" – 2' (25cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 18" (30cm – 45cm)
Water Needs Average
Maintenance Low
Soil Type Loam, Sand
Soil pH Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy, Semi-Evergreen
Tolerance Deer
Attracts Butterflies
Garden Uses Banks and Slopes, Beds and Borders, Edging, Ground Covers, Patio and Containers, Ponds and Streams, Underplanting Roses and Shrubs
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

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Great Plant Combination Ideas with Heuchera - Coral Bells

Guides with Heuchera - Coral Bells


Pictures are courtesy of Terra Nova® Nurseries, Inc. www.terranovanurseries.com

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 9
Heat Zones 1 – 8
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Heuchera - Coral Bells
Exposure Full Sun, Partial Sun
Season of Interest Spring (Mid,Late)
Summer (Early,Mid,Late)
Fall
Height 10" – 2' (25cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 18" (30cm – 45cm)
Water Needs Average
Maintenance Low
Soil Type Loam, Sand
Soil pH Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy, Semi-Evergreen
Tolerance Deer
Attracts Butterflies
Garden Uses Banks and Slopes, Beds and Borders, Edging, Ground Covers, Patio and Containers, Ponds and Streams, Underplanting Roses and Shrubs
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage

Great Plant Combination Ideas with Heuchera - Coral Bells

Guides with Heuchera - Coral Bells

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