Photo by Melody

PlantFiles: False Spirea, False Goat's Beard
Astilbe 'Color Flash'

Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Astilbe (a-STIL-bee) (Info)
Cultivar: Color Flash
Additional cultivar information: (PP17343, aka Beauty of Ernst)
Hybridized by Holtmaat; Year of Registration or Introduction: 2005

One vendor has this plant for sale.

3 members have or want this plant for trade.


12-18 in. (30-45 cm)

15-18 in. (38-45 cm)

USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
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)

Sun Exposure:
Sun to Partial Shade


Bloom Color:
Pale Pink

Bloom Time:
Mid Summer


Other details:
This plant is resistant to deer

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

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

Click thumbnail
to view:

By annakins
Thumbnail #1 of Astilbe  by annakins

By graciebelle
Thumbnail #2 of Astilbe  by graciebelle

By graciebelle
Thumbnail #3 of Astilbe  by graciebelle

By graciebelle
Thumbnail #4 of Astilbe  by graciebelle


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive graciebelle On Dec 9, 2009, graciebelle from North Bennington, VT wrote:

I've been growing ColorFlash astible for about 5 years and I love how the foliage changes with the seasons. however, mine never have blossoms that are as red as the one pictured. They're usually pale pink and don't make much of a statement compared to the leaves.

Positive music2keep On Jul 9, 2007, music2keep from Peterstown, WV (Zone 6a) wrote:

This beauty is dainty with a delicate bloom. Grows well in part shade with Hostas. It's only requirement is that you water it when the weather gets hot & dry.


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

Saint Charles, Illinois
Aberdeen, South Dakota
Shaftsbury, Vermont
Olympia, Washington
Peterstown, West Virginia

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