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Coral bells
Habit (mature) · Cultivar 'Marmalade' · David J. Stang / Wikimedia Commons · CC BY-SA 4.0
Limited coverage
Coral bells
Heuchera spp.
A genus of compact native foliage perennials (largely Heuchera villosa hybrids in the modern colored-leaf trade) for shade edges, containers, and color contrast near paths. The 'Marmalade' cultivar shown here is heat- and humidity-tolerant and deer-resistant.
Review: Source-backed
Climate fit: moderate (58/100)
Border
Container
Filler
Light
Part sun / Part shade
Water
Moderate water
Mature size
10-32" tall · 18" apart
Hardy in zones
3a-8b
brutally cold to frosty winters
Summer heat range
Cool-Hot
cool to hot summers Interim Plotwright tier until the plant AHS range is authored.
Native in Illinois
No
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No significant pest problems; heat- and humidity-tolerant. Deer and rabbits find the foliage unappetizing.
Climate notes
Cold hardiness
Now
Zone 6b
USDA
Chicago, IL · 1991-2020 average annual coldest day
Source: USDA Plant Hardiness Zone Map 2023 (1991-2020 climatology) via ArcGIS FeatureServer
Well-suited
2050
Zone 7b
Plotwright
Your zone + climate-model shift · SSP3-7.0 (regional rivalry)
Well-suited
In plain terms: cold winters — coldest nights typically around -3°F.
Well-suited today and still thriving in 2050.
Heat tolerance
Loading current AHS heat-zone and plant heat-fit data at your coordinates…
Appears in collections
Collection · 2 plants
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Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Coral bells (Heuchera spp.). Retrieved 2026, June 5, from https://plotwright.garden/plants/coral-bells
Sources for every fact
Every fact on this page traces to a source. 18 fields cited18 source-backed.
NC State Extension Gardener Plant Toolbox
University extension service
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
Growth stages
Lifecycle
Regional guidance
Success tips
Designer notes
Wikimedia Commons
Photo · CC BY-SA 4.0
Backs 1 field
Image
Community photos
The photos above are our reviewed reference set, curated for accuracy.
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