Coral Bells
Heuchera sanguinea
Coral Bells (Heuchera sanguinea) is a perennial herbaceous flowering plant in the Saxifragaceae family, prized in gardens for its attractive foliage and delicate, bell-shaped flowers. The species name 'sanguinea' refers to the blood-red color of its blooms. Native to the southwestern United States and northern Mexico, this drought-tolerant plant has become a staple in ornamental horticulture worldwide.
Taxonomie
• The genus Heuchera comprises approximately 50–70 species, most of which are native to North America
• Named after Johann Heinrich Heucher, an 18th-century German physician and botanist
• Indigenous peoples of the Southwest used some Heuchera species medicinally, particularly as poultices for wounds and inflammation
Leaves:
• Basal rosette of rounded to heart-shaped leaves with lobed margins
• Foliage is semi-evergreen to evergreen in mild climates
• Leaves are typically 3–8 cm across with a slightly hairy texture
• Color ranges from green to reddish-green, often with silver or purple undertones
Flowers:
• Slender, wiry flower stalks rise above the foliage in late spring to early summer
• Produces dense panicles of small, bell-shaped flowers
• Individual flowers are approximately 5–10 mm long
• Typically deep red to pink (occasionally white or coral-colored)
• Attractive to hummingbirds and pollinators
Roots:
• Thick, woody rootstock with fibrous roots
• Drought-adapted with moderate water storage capacity
• Prefers partial shade to full sun depending on climate
• Attracts hummingbirds, butterflies, and native bees
• Deer and rabbit resistant due to slightly hairy, bitter foliage
• Hardy in USDA zones 4–9
• Tolerates drought once established but performs best with consistent moisture
Light:
• Partial shade is ideal, especially in hot climates
• Can tolerate full sun with adequate moisture
• Foliage color intensifies with some sun exposure
Soil:
• Well-drained, humus-rich soil
• Tolerates a range of soil types including clay, loam, and rocky substrates
• pH: slightly acidic to neutral (6.0–7.0)
Watering:
• Moderate water needs; drought-tolerant once established
• Avoid waterlogged conditions to prevent crown rot
Temperature:
• Hardy in USDA zones 4–9
• Mulch in winter for protection in colder zones
Propagation:
• Division in spring or fall
• Seed sowing (may not come true to cultivar)
• Stem cuttings
Common Problems:
• Crown rot from overwatering or poor drainage
• Vine weevil damage to roots
• Rust or powdery mildew in humid conditions
Anecdote
The common name 'Coral Bells' comes from the delicate, bell-shaped flowers that dangle like tiny coral-colored chimes from slender stalks. Heuchera sanguinea has been a parent plant in breeding programs that have produced hundreds of modern cultivars with foliage in shades of purple, silver, lime green, and peach — making it one of the most versatile foliage plants in contemporary garden design.
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