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groundcover

Foamflower

Tiarella cordifolia

Climate-suitable non-native

Growing guidance

Horticultural figures below are practitioner estimates for planning, pending expert review. The botanical record further down is sourced and verifiable.

Current-climate suitability

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Future-climate resilience

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Sun

Shade

Soil moisture

average, moisture-retentive

Heat tolerance

Up to about 36°C

Cold tolerance

Down to about -35°C

Waterlogging tolerance

3/5

Drought tolerance

2/5

Mature size

0.2–0.3 m tall, 0.4 m spread

Seasonal interest

Late spring · Cream

Maintenance

low

Wildlife supported

General wildlife value 3/5 (verified species relationships are shown only where structured data exists)

Known risks or warnings

Needs reliable moisture and leaf litter.

Toxicity: none

Verified botanical record

Accepted scientific name
Tiarella cordifolia L.
Family
Saxifragaceae (Saxifragales)
Rank and status
species · accepted
GBIF record
Taxon 5371610

Recorded as introduced in: Belgium, Flemish Region, Lithuania, Walloon Region

Ranges are exactly as recorded in the GBIF source checklists and may be incomplete for widely cultivated species.

Tiarella cordifolia, the heart-leaved foamflower, is a species of flowering plant in the family Saxifragaceae. The specific name cordifolia means "with heart-shaped leaves", a characteristic shared by all taxa of Tiarella in eastern North America. It is also referred to as Allegheny foamflower, false miterwort, and coolwort. Historically, the name Tiarella cordifolia has referred to the one and only species of Tiarella in eastern North America, but in 2021, the species was split into multiple taxa, which caused the name to have a different meaning. For clarity, the qualified name Tiarella cordifolia sensu stricto (abbreviated s.s.) refers to the new taxon while Tiarella cordifolia sensu lato refers to the old taxon.

Description from Wikipedia — Tiarella cordifolia (CC BY-SA), shortened and unedited in substance.

Native status and geographic context

  • United Kingdom: climate-suitable
  • United States: native
  • Australia: climate-suitable

Native status is never inferred from climate similarity. Plants restricted or invasive in a jurisdiction are excluded from recommendations there.

Demonstration data. Climate, plant and retailer records shown here are realistic samples awaiting horticultural validation and live data connections.