Coral Bells (Heuchera sanguinea)

Image: AI generated

Coral Bells Plant Care

Heuchera sanguinea Engelm.

Updated · Sources · How we source care data

Heuchera sanguinea, also known as Coral Bells or Alumroot, is a clumping perennial with compact growth habit. It has vibrant red flowers on tall stems and attractive green foliage. Suitable for bright indirect light conditions.

🌼Perennials
Water

Every 7–10 days

Light

Bright indirect

Temp

55–75°F

Humidity

40–60%

At a glance

How do you care for Coral Bells?

Plant Coral Bells in bright indirect light (USDA zones 4a–9b) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 55–75°F (13–24°C). Fertilize it every month during the growing season. The ASPCA lists it as non-toxic to cats and dogs.

Where Is the Coral Bells Native To?

Native range1 country

What Is the Coral Bells?

Coral Bells (Heuchera sanguinea) belongs to the Saxifragaceae family within the Heuchera genus. Coral Bells is native to US states of Arizona and New Mexico. Coral Bells is also known as Bloody Cranesbill.

Coral Bells displays a clumping, compact growth habit, reaching up to 1 ft tall with a spread of approximately 1 ft. Coral Bells produces red, bell-shaped, tall inflorescence.

Leaf size: approximately 4 inches.

How Often Should You Water a Coral Bells?

Water a young or newly planted Coral Bells every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Watering Frequency

Every 7–10 days

Until established; then in dry spells

What Light Does the Coral Bells Need?

Coral Bells thrives in bright indirect light. Avoid placing Coral Bells in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Bright indirect

What Temperature and Humidity Does the Coral Bells Prefer?

Heuchera sanguinea tolerates temperatures of 55–75°F. Coral Bells prefers humidity levels of 40–60%.

Temperature

55–75°F

Humidity

40–60%

What Soil Mix Works Best for a Coral Bells?

Well-draining, fertile. Good drainage is essential for Coral Bells to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Coral Bells?

Feed Coral Bells every month during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

Fertilizing

Every month

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

Where Should You Plant a Coral Bells?

Choose a spot with bright indirect light and well-draining, fertile. Avoid low spots where water collects after rain.

Coral Bells is suited to USDA Zone 4a – 9b.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

How Far Apart Should You Plant a Coral Bells?

Coral Bells can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

How Do You Prune a Coral Bells?

Prune Coral Bells while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

How Do You Care for a Coral Bells in Winter?

Coral Bells is hardy down to USDA zone 4a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.

How Do You Propagate a Coral Bells?

Coral Bells can be propagated through division, stem cuttings. Similar propagation techniques also apply to hairy alumroot plant care, which shares the same genus.

Is the Coral Bells Toxic to Pets and Children?

Non-toxic to cats and dogs

Source: ASPCA Animal Poison Control Center plant list. View the ASPCA entry

Non-toxic

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Coral Bells?

Coral Bells is susceptible to aphids, spider mites, vine weevils. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Coral Bells Need?

Coral Bells grows outdoors in USDA Zone 4a – 9b. It survives winters down to planting zone 4a. Coral Bells is native to US states of Arizona and New Mexico.

Hardiness Zone

Zone 4a – 9b

Keep exploring plants

Coral Bells is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Heuchera genus — compare its care with other Heuchera species on PlantoScan.

Heuchera is part of the Saxifragaceae plant family — browse all Saxifragaceae genera and species.

Coral Bells thrives in bright light and direct sun — see other bright-light plants.

Related Plant Care Guides

Closely related plants with similar care requirements:

Sources

  • Scientific name & taxonomy: Heuchera sanguinea Engelm., family Saxifragaceae (first published in Mem. Tour N. Mexico : 107 (1848)) — World Flora Online record, IPNI name record, Wikidata.
  • Pet toxicity: The ASPCA lists Coral Bells as non-toxic to cats and dogs. Source: ASPCA Toxic and Non-Toxic Plant List.
  • Photo: AI-generated illustration (labelled on the image).
  • Hardiness zone: USDA Zone 4a – 9b, estimated from the plant's typical growing conditions.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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