Dolce Toffee Tart Coral Bells (Heuchera 'Toffee Tart') - foliage plant, illustrated plant cardIllustration

Dolce Toffee Tart Coral Bells

Heuchera 'Toffee Tart'

Also called dolce toffee tart

Dolce Toffee Tart Coral Bells blooms from June through June.

Bloom calendar
Bloom time
Jun
checked
Hardiness
Zones 4–9
checked
Sun
Part shade
checked
Water
Moderate water
checked
Mature size
20 in × 16 in
checked
Type
Perennial
house classification

Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Growing Dolce Toffee Tart Coral Bells

Plant it in part shade. It prefers moderate water. It is hardy in USDA zones 4–9. Expect it to reach about 20 in tall and 16 in wide at maturity, in roughly 2 years (a house reading).

Pets

  • Not yet checked for pets.

Lists differ and none is complete. If a pet eats a plant and seems unwell, call a veterinarian or a pet poison helpline.

No toxicity note is on file for Dolce Toffee Tart Coral Bells. That is not a clearance: check its safety for people and pets before planting.

Verification
What was checked

Nine facts were checked against named botanical sources, each recorded beside the sources that carried it: mature height and spread, hardiness zones, sun, water, bloom months and color, the trait tags, and years to mature size, which rests on a recorded house rule where no publisher states one and is marked so. Soil, diseases, pests, toxicity and the plant's own names have not yet been read for this plant, and its trait tags are the ones a feature uses rather than every word a page prints. Each fact above carries its own mark. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.

See the 9 sources it was checked against

When to plant Dolce Toffee Tart Coral Bells

Plant Dolce Toffee Tart Coral Bells in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. In zone 6, the middle of its hardy zones 4 to 9, spring means March to May and fall means August or September. Once settled, it blooms in June.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does Dolce Toffee Tart Coral Bells get?

Illustration of Dolce Toffee Tart Coral Bells drawn to scale beside an adult20 intall5 ft 7 inan adult16 inwide
About 20 in tall and 16 in wide at maturity: knee-high beside an adult.

See Dolce Toffee Tart Coral Bells in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.

How far apart to plant Dolce Toffee Tart Coral Bells

Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.

Space Dolce Toffee Tart Coral Bells about 16 in apart, center to center, so each plant has room to reach its full width.

Plant them
16 in apart
Per 10 sq ft
about 6
4 by 8 ft bed
about 18

Add Dolce Toffee Tart Coral Bells to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.

Where these facts come from

Dolce Toffee Tart Coral Bells' height, spread, hardiness zones, sun, water, bloom months and color and trait tags were checked against 9 published sources on October 20, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.

  • Walters Gardensintroducerheight, spread, hardiness zones, sun, water, bloom months and color and trait tags
  • westonfarmtodoor.comWeston Nurseries, Massachusetts (NetPS Plant Finder entry)height, spread, hardiness zones, bloom months and color and trait tags
  • agsci.psu.eduPenn State Flower Trials, Pennsylvania, 2021 shade-ground trialheight, spread and bloom months and color
  • agsci.psu.eduPenn State Flower Trials, Pennsylvania, 2020 shade-ground trialheight, spread and bloom months and color
  • Plant Addictsqueue storeheight, hardiness zones, sun and trait tags
  • homenursery.comHome Nursery, Illinoisspread and bloom months and color
  • Proven WinnersWalters perennial programsun, water and trait tags
  • medfordnursery.comMedford Nursery, New Jerseyspread and trait tags
  • pridescorner.comPrides Corner Farms, Connecticutspread

How the checking works, and what each standard covers, is on the verified plants page.

The Coral Bells group

One of 29 in the Coral Bells group. Same genus, similar care.

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Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.

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