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PlantFiles: Foamflower
Tiarella 'Cygnet'

Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Tiarella (tee-uh-RELL-a) (Info)
Cultivar: Cygnet
Additional cultivar information: (PP11051)
Hybridized by Heims; Year of Registration or Introduction: 1998

7 members have or want this plant for trade.


12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Light Shade
Partial to Full Shade
Full Shade

Bloom Color:
Pale Pink
White/Near White

Bloom Time:
Mid Spring
Late Spring/Early Summer
Blooms repeatedly

Grown for foliage

Other details:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
By dividing the rootball

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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By Galanthophile
Thumbnail #1 of Tiarella  by Galanthophile

By sanannie
Thumbnail #2 of Tiarella  by sanannie

By rebecca101
Thumbnail #3 of Tiarella  by rebecca101

By Galanthophile
Thumbnail #4 of Tiarella  by Galanthophile

By Galanthophile
Thumbnail #5 of Tiarella  by Galanthophile

By lupinelover
Thumbnail #6 of Tiarella  by lupinelover

By daylily970
Thumbnail #7 of Tiarella  by daylily970

There are a total of 11 photos.
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1 positive
1 neutral
No negatives

Gardeners' Notes:

Neutral Terri1948 On Apr 21, 2011, Terri1948 from Yorkshire

A beautiful Tiarella to add to any collection. I grow mine alongside Geum 'Leonard's Variety' They bloom at the same time in my garden in the UK.
I think this would also look lovely surrounded by Muscari 'Valerie Finnis' which also blooms at the same time here.
I grow it in semi-shade and it multiplies well.

Positive lupinelover On Jan 19, 2003, lupinelover from Grove City, OH (Zone 6a) wrote:

The appearance of this plant changes through the season. If deadheaded, flowering repeats well, lasting well into summer. Little seed is set, but as it is a hybrid, it will not come true from seed.

Like all tiarellas, it needs a deep humusy soil to thrive, but once it is established, it is a carefree woodland plant.

In warmer zones it is evergreen, but in cold winter areas it may die to the ground. Flowering is not affected.


This plant has been said to grow in the following regions:

Sandwich, Massachusetts
Croton On Hudson, New York
Lexington, Virginia

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