Coral bells, also known as Heuchera or alumroot, are colorful, low-growing perennials grown mostly for their foliage. They are one of the best plants for adding year-round color to shade gardens, part-shade borders, containers, woodland edges, and mixed perennial beds.
Coral bells are easy to grow once you understand what they need most: bright shade or part sun, well-drained soil, consistent moisture without soggy roots, and a crown that sits at or slightly above soil level. They are not heavy feeders, they do not need much pruning, and many varieties keep attractive foliage through much of the year, especially in mild climates.
The quick answer: Coral bells grow best in part shade with moist, well-drained soil. Plant the crown at or slightly above soil level and water regularly while establishing. Fertilize lightly with compost, remove damaged foliage in spring, and divide clumps every 3-4 years if they become woody, thin, or heaved out of the ground.
Coral bells are grown mostly for colorful foliage, but many varieties also send up airy flower stalks in late spring or summer.
Part shade or filtered sun; morning sun is often ideal.
Planting light-colored varieties in hot afternoon sun, causing leaf scorch.
Soil
Moist, rich, well-drained soil.
Letting crowns sit in soggy soil, which can cause rot.
Planting depth
Set the crown level with or slightly above the soil.
Burying the crown under soil or mulch.
Water
Water regularly while establishing; keep soil moist but not wet.
Letting shallow roots dry out during heat waves.
Fertilizer
Use compost or a light slow-release fertilizer in spring.
Over-fertilizing and causing weak growth or salt stress.
Maintenance
Remove old foliage in spring and divide aging clumps as needed.
Ignoring woody crowns or heaved plants until they decline.
What Are Coral Bells?
Coral bells are clump-forming perennials in the genus Heuchera. Many species are native to North America, and modern breeding has produced an incredible range of foliage colors, including lime green, caramel, peach, bronze, burgundy, purple, silver, chocolate, and nearly black.
While coral bells do bloom, most gardeners grow them for foliage. The heart-shaped or rounded leaves are often scalloped at the edges and form a low mound. Slender flower stalks rise above the mound in late spring or summer. Depending on the variety, flowers may be white, cream, pink, coral, red, or rosy purple.
Coral bells are especially useful because they add color where many flowering plants struggle, including shady beds, under small trees, along paths, and in containers.
Heuchera vs. Heucherella vs. Tiarella
These three plants are closely related and all work well in shade and part shade. They are not exactly the same, though, and knowing the difference helps you choose the best plant for your garden.
Plant
Common Name
Best Feature
Garden Use
Heuchera
Coral bells or alumroot
Bold foliage color and strong container performance.
Edging, containers, shade gardens, mass plantings, foliage contrast.
Plant coral bells in spring or fall when temperatures are mild. Spring planting gives plants a full season to establish before winter. Fall planting also works well if the roots have time to settle before freezing weather.
The most important planting detail is crown placement. The crown is the central growing point where the leaves emerge. It should sit at soil level or slightly above. If the crown is buried too deeply, the plant is more likely to rot. If the crown heaves out of the ground after winter, gently reset the plant in spring.
Choose the right light. Match the variety to sun, part shade, or shade (see sun guidelines below).
Improve drainage. Loosen compacted soil and add compost if needed.
Dig a wide hole. Make the hole wider than the root ball but not deeper.
Set the crown correctly. Keep the crown level with or slightly above the soil surface.
Backfill gently. Firm soil around the roots without burying the crown.
Water deeply. Soak the root zone after planting.
Mulch carefully. Mulch around the plant, but keep mulch away from the crown.
How Much Sun Do Coral Bells Need?
Most coral bells grow best in part shade, especially where summers are hot. Morning sun with afternoon shade is often ideal. This gives the foliage enough light for good color without exposing the plant to the harshest heat of the day.
Some varieties tolerate more sun than others. Dark purple, bronze, and burgundy varieties often handle sun better than lime, yellow, silver, or pale-colored varieties, which can scorch in hot afternoon sun. In cooler northern climates, coral bells can usually handle more sun if the soil stays evenly moist.
Best placement rule: In hot climates, give coral bells morning sun and afternoon shade. In cooler climates, some varieties can take more sun if they are watered well.
Best Soil For Coral Bells
Coral bells prefer moist, rich, well-drained soil. They like steady moisture but do not tolerate soggy soil around the crown. Poor drainage is one of the most common reasons coral bells decline, especially in winter or during wet summers.
If your soil is heavy clay, improve the planting area with compost and avoid burying the crown. If your soil is very sandy, compost can help it hold moisture long enough for the shallow roots to use. A slightly acidic to neutral soil is usually ideal for most modern Heuchera varieties.
Soil tips
Use compost to improve soil structure.
Avoid low spots where water collects.
Keep mulch and soil away from the crown.
Do not plant coral bells too deeply.
Improve drainage before planting in heavy clay.
Watering Coral Bells
Coral bells have relatively shallow roots, so they need consistent watering while they are establishing. Keep the soil evenly moist during the first growing season, but never water so much that the crown sits in saturated soil.
Once established, coral bells can handle short dry periods, especially in shade, but they are not plants to ignore during heat waves. If the leaves wilt, curl, scorch, or turn brown at the edges, check soil moisture and sun exposure.
Water coral bells at the soil level when possible to keep the crown healthy and reduce foliage problems.
Watering tips
Water deeply after planting.
Keep new plants evenly moist during the first season.
Water more often during heat waves and dry spells.
Water at the base instead of over the foliage when possible.
Avoid keeping the crown constantly wet.
Check container-grown coral bells more often than in-ground plants.
Fertilizing Coral Bells
Coral bells are light feeders. In the ground, a thin layer of compost in spring usually supplies enough nutrients for the season. Too much fertilizer can cause weak growth, salt stress, or brown leaf edges, especially in containers.
For container-grown coral bells, use a light application of slow-release fertilizer in spring. Because nutrients wash out of containers faster than garden soil, potted plants may benefit from more regular but still gentle feeding.
Fertilizer tips
Topdress with compost in spring.
Use slow-release fertilizer lightly for potted plants.
Avoid high-nitrogen fertilizer.
Do not fertilize dry or heat-stressed plants.
Flush containers with water occasionally if fertilizer salts build up.
Pruning Coral Bells
Coral bells need very little pruning. Most maintenance is simply removing old, damaged, or diseased leaves. In spring, trim away brown or winter-damaged foliage to make room for fresh new growth.
Flower stalks can be left for pollinators or cut to keep the focus on the leaves. If the plant looks messy after bloom, remove the old flower stalks at the base. If leaves look ragged, you can trim the worst foliage and let the plant grow new leaves.
Coral bells flowers are usually airy and delicate, rising above the foliage on slender stems.
When to prune coral bells
Early spring: Remove brown, tattered, or winter-damaged leaves.
After bloom: Cut flower stalks back to the base for a tidier plant.
During the growing season: Remove damaged or diseased foliage as needed.
Fall: Remove diseased leaves, but leave healthy foliage for winter interest.
Dividing And Transplanting Coral Bells
Coral bells often need dividing every 3-4 years. Over time, the crown can become woody, the center may thin out, or freeze-thaw cycles may push the plant upward. Division refreshes the plant and provides more coral bells to use elsewhere in the garden.
The best time to divide coral bells is spring or early fall. Lift the plant gently, separate healthy rooted sections, discard weak woody pieces, and replant divisions with the crown at soil level.
Signs coral bells need dividing
The center of the plant is thinning or dying out.
The crown looks woody and raised above the soil.
The plant has heaved out of the ground after winter.
Growth is weaker than it used to be.
The clump has become crowded or misshapen.
Growing Coral Bells In Pots
Coral bells are excellent container plants because their colorful foliage lasts much longer than many flowers. They work well in porch pots, shade containers, mixed planters, window boxes, and fall arrangements.
Use a container with drainage holes and a high-quality potting mix. Plant the crown at or slightly above the soil surface. Containers dry out faster than garden beds, so check moisture regularly, especially in summer.
Coral bells are some of the best foliage plants for shade containers because they add color even when not blooming.
Container care tips
Use a pot with drainage holes.
Use potting mix instead of garden soil.
Keep the crown slightly above the soil line.
Place the pot in morning sun, bright shade, or part shade.
Water when the top inch of potting mix begins to dry.
Fertilize lightly in spring.
Protect containers from harsh winter wind and repeated freeze-thaw cycles.
Coral Bells Winter Care
Coral bells are evergreen to semi-evergreen in many climates. In mild areas, they may keep attractive foliage all winter. In colder areas, leaves may look ragged by spring but the crown should send out fresh growth when temperatures warm.
The main winter issue is crown heaving. Repeated freezing and thawing can push shallow-rooted plants upward. A light winter mulch can help reduce heaving, but mulch should not be piled directly over the crown.
Winter care tips
Leave healthy foliage for winter interest.
Remove diseased foliage and throw it away.
Apply light mulch around the plant, not over the crown.
Check for crown heaving in early spring.
Gently reset heaved plants and cover exposed roots with soil or compost.
Protect container plants from cold wind, heavy winter rain, and repeated freezing.
Are Coral Bells Good For Pollinators?
Yes. Although coral bells are usually grown for foliage, the flowers can be valuable for pollinators. The small bell-shaped flowers attract hummingbirds, bees, and other beneficial insects, providing both nectar and pollen.
Red, pink, and coral-flowered varieties are especially useful near patios and shade gardens for foliage color plus hummingbird activity. If you prefer a tidier look, you can remove flower stalks after bloom.
Best Companion Plants For Coral Bells
Coral bells pair well with plants that enjoy shade or part shade, and evenly moist, well-drained soil. Use them to add color contrast near green foliage plants or to brighten darker corners of the garden.
Hostas for bold foliage contrast in shade.
Ferns for soft texture next to ruffled Heuchera leaves.
Astilbe for feathery blooms in moist part-shade beds.
Foamflower for woodland-style spring flowers.
Brunnera for silver foliage and early blue flowers.
Hellebores for evergreen structure and early-season flowers.
Carex for grass-like texture in shade containers and borders.
Common Coral Bells Problems
Problem
Likely Cause
What To Do
Coral bells dying from the center
Old woody crown, overcrowding, winter heaving, or crown rot.
Divide the plant, reset the crown, improve drainage, and discard rotten sections.
Brown leaf edges
Sun scorch, drought stress, fertilizer salt, or hot dry wind.
Move to more shade, water consistently, and avoid over-fertilizing.
Yellow leaves
Too much water, poor drainage, crown rot, or natural aging.
Check drainage and crown placement before adding fertilizer.
Leaves look ragged
Winter damage, heat stress, slugs, vine weevils, or old foliage.
Trim damaged leaves, inspect for pests, and let fresh foliage regrow.
Rust or leaf spots
Fungal disease, crowded growth, poor airflow, or wet foliage.
Remove affected leaves, avoid overhead watering, and improve spacing.
Plant heaved out of ground
Freeze-thaw cycles and shallow roots.
Replant gently in spring with the crown at soil level and mulch lightly in winter.
Shop Coral Bells For Sale
Browse coral bells for shade gardens, containers, colorful foliage, woodland edges, borders, and year-round texture.
Most coral bells grow best in part shade. Morning sun with afternoon shade is often ideal. Some darker-leaved varieties tolerate more sun, while lime, yellow, silver, and pale varieties usually need more shade in hot climates.
Do coral bells come back every year?
Yes. Coral bells are perennials and come back every year when planted in the proper growing zone and given well-drained soil. In mild climates, they may keep attractive foliage through winter.
Are coral bells evergreen?
Coral bells are evergreen to semi-evergreen depending on the climate and variety. In cold climates, foliage may look tattered by spring, but new leaves usually emerge from the crown as temperatures warm.
How often should coral bells be watered?
Water regularly during the first growing season. After establishment, water when the soil begins to dry, especially during heat waves or dry spells. Coral bells prefer moist soil but do not like soggy crowns.
Why are my coral bells dying?
The most common reasons are soggy soil, crown rot, planting too deeply, winter heaving, heat stress, drought stress, or an old woody crown that needs dividing.
Why are my coral bells turning brown?
Brown leaves can be caused by sun scorch, dry soil, hot wind, winter damage, fertilizer salt, or old foliage. If the crown is firm and healthy, trim away damaged leaves and adjust light or watering.
Should coral bells be cut back?
Do not cut coral bells back hard in fall if the foliage is healthy. In early spring, remove brown, damaged, or tattered leaves so new growth can fill in. Flower stalks can be cut back after blooming.
Do coral bells spread?
Coral bells form clumps that slowly widen, but they are not aggressive spreaders. Most clumps benefit from division every 3-4 years if the center becomes woody or thin.
When should coral bells be divided?
Divide coral bells in spring or early fall when the plant is not under heat stress. Divide when clumps are woody, thinning, heaved out of the ground, or losing vigor.
Can coral bells grow in pots?
Yes. Coral bells are excellent container plants. Use a pot with drainage holes and high-quality potting mix. Provide part shade, careful watering, and protection from harsh winter wind and repeated freeze-thaw cycles in cold climates.
Are coral bells deer resistant?
Coral bells are generally considered deer resistant, but not deer proof. Deer may browse them if food is scarce, especially new tender growth.
Are coral bells poisonous?
Coral bells are generally not considered highly toxic, but they are ornamental plants and should not be eaten. Keep pets and children from chewing garden plants, especially if you are unsure of the exact variety.
Bottom Line
Coral bells are one of the best perennials for colorful foliage in shade and part shade. They are easy to grow when planted with the crown at the right depth in well-drained soil. They should be watered during dry periods and protected from soggy winter conditions.
For the healthiest plants, avoid burying the crown, do not overwater, remove damaged foliage in spring, divide older clumps when they become woody, and choose varieties suited to your sunlight. With the right care, coral bells can provide long-lasting color in beds, borders, containers, and woodland-style gardens.
Sources
NC State Extension Gardener Plant Toolbox: Heuchera
NC State Extension Gardener Plant Toolbox: Heuchera americana
NC State Extension Gardener Plant Toolbox: Heuchera villosa
NC State Extension Gardener Plant Toolbox: x Heucherella
Missouri Botanical Garden Plant Finder: Heuchera americana
University of Minnesota Extension: Dividing Perennials
Erica Browne Grivas is a lifelong journalist, avid gardener, and Seattle-based garden writer with experience working at nurseries and as a gardener. She has written for publications including The Seattle Times, Horticulture Magazine, and The American Gardener, and has earned Garden Communicators International Gold Medal recognition.
Originally published June 16, 2021. Last updated June 11, 2026.
