Coral Bells is a perennial grown for its white blooms, which open in summer and return year after year. It's hardy across USDA zones 4 through 9, shrugs off deer and grows just as well in a container as in the ground. Its summer flowers are a moderate draw for native bees and hummingbirds.
Coral Bells — the short answer
Coral Bells: grown in zones 4–9, part sun, pH 6–7.
- USDA zones
- 4–9
- Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
- Soil pH
- 6–7
- Growable Ground Plant Database
- Sun
- Part Sun
- Growable Ground Plant Database
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.
Score Coral Bells on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether coral bells actually takes — and those shift from one yard to the next. Enter your address and we'll score coral bells against your land's real conditions.
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What Coral Bells is
Coral Bells grows as a perennial and reaches around a foot and a half at maturity. It blooms white in summer. It's also deer-resistant and well suited to containers.
How to grow Coral Bells
Coral Bells grows in USDA zones 4 through 9. Coral Bells does best in part sun — at least 4 hours of direct sun a day — and soil from pH 6 to 7, on well-drained ground.
USDA Zones
4-9
USDA PHZM 2023
Soil pH
6 - 7
Growable Ground Plant Database
Sun
Part Sun
Growable Ground plant catalog
Drainage
well (dry spells)
Growable Ground plant catalog
Mature Height
1.5 ft
Growable Ground plant catalog
Start the season right
Plant coral bells in part sun with at least 4 hours of direct sun. It grows in the cool halves of the year, so sow it in spring or late summer rather than waiting for midsummer heat.
Match the soil
Coral Bells prefers pH 6 to 7 (Growable Ground Plant Database). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.
Water steadily
Keep the root zone evenly moist through establishment. A 2–3 inch mulch layer holds moisture without waterlogging.
Harvest at its peak
Cut coral bells blooms in the cool of the morning, just as they open, for the longest display.
Where Coral Bells thrives
Coral Bells is hardy across USDA zones 4 through 9. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 4–9 spans average winter lows from -30°F to 30°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 33 outright and splits 18 more down the middle — and which side of that line your land sits on changes the answer.
Zones 4–9·Where Coral Bells growsOpen map →
Where Coral Bells stands, state by state
Coral Bells is rated for zones 4–9 — a cold floor USDA puts at -30 to -20°F. Across the 50 states and DC, 33 sit fully inside that band, the line runs through 18 more, and 0 sit outside it — and inside every split state, the same line runs on at county grain.
Fully inside zones 4–9
33 states
3 of 33 shown
State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.
What grows around Coral Bells
Growing guides for coral bells
In rotation planning, coral bells counts as a Other — beds recover best when other crops don’t follow each other in the same spot year over year. (Growable Ground derivation — crop-rotation group from botanical family)
Related plants in perennial flower
Good to know
Good news for pet owners — coral bells isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Coral Bells offers moderate value to bees and other pollinators. (Source: Lady Bird Johnson Wildflower Center.)
Your land is one point inside Coral Bells's range
This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.
See if Coral Bells will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether coral bells actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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How we know this about Coral Bells
The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.
Grounded inUSDA PLANTS Database•USDA PHZM•ASPCA
Frequently asked questions
Can I grow Coral Bells in my zone?
Coral Bells grows in USDA hardiness zones 4 through 9 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Coral Bells?
Coral Bells is a cool-season crop, so it goes in during the cool halves of the year — early spring, and again in late summer for a fall planting — rather than at the height of summer heat. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Coral Bells need?
Coral Bells does well in partial sun — around 4 hours of direct sun, and it takes some afternoon shade in stride. That flexibility makes it a good match for a bed the house or a nearby tree shades for part of the day. A Growable Ground report maps how the sun actually falls on your land, hour by hour, so you can set it where the light lines up.
What soil does Coral Bells need?
Coral Bells prefers soil pH 6 to 7, on well-drained ground (Growable Ground Plant Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Coral Bells attract pollinators?
Yes — coral bells's flowers are a solid nectar source for native bees and hummingbirds. (Source: Lady Bird Johnson Wildflower Center.)
Is Coral Bells safe for pets?
Coral Bells is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)