Tall Bearded Iris 'Babbling Brook'


Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Babbling Brook
Hybridized by Keppel
Registered or introduced: 1965
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Tall Bearded (TB)


36-48 in. (90-120 cm)


12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

18-24 in. (45-60 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)

Sun Exposure:

Full Sun


Parts of plant are poisonous if ingested

Bloom Color:

Light Blue

Bloom Time:

Midseason (M)



Other details:

Unknown - Tell us

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 rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:

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

Awards (if applicable):

High Commendation

Honorable Mention

Award of Merit

Dykes Memorial Medal

John C. Wister Memorial Medal (TB)

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


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


Happy Jack, Arizona

Vail, Arizona

San Jose, California

Denver, Colorado

Montrose, Colorado

Boise, Idaho

Cedar Rapids, Iowa

Wichita, Kansas

Preston, Maryland

Robertsville, Missouri

Belfield, North Dakota

Milan, Ohio

Lawton, Oklahoma

Ponca City, Oklahoma

Celina, Tennessee

Sweetwater, Tennessee

Lampasas, Texas

Mc Lean, Virginia

Madison, Wisconsin

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Gardeners' Notes:


On Jan 4, 2012, SusieSunflower from Wichita, KS (Zone 6a) wrote:

Described as a light blue self with pale lemon beard. A large, well shaped, lightly ruffled self that quickly sun fades to a very pale, almost white blue. It's a favorite in my iris bed.


On Jun 24, 2010, Claudine from Montrose, CO (Zone 5a) wrote:

Multiple large blooms per stalk. Cool blue color stands out well against the darker (black) irises.


On Dec 26, 2005, Joan from Belfield, ND (Zone 4a) wrote:

Awards: American Iris Society Highest Commendation 1965, Honorable Mention 1967, Award of Merit 1969, Dykes Medal 1972


On Jun 20, 2003, NellPercy from Ponca City, OK wrote:

Keppel 1966 38" HISTORIC Light blue self DM 1972


On May 31, 2003, Crimson from Clarksville, TN (Zone 6b) wrote:

Sold as a shade of blue, it's not even remotely blue, it's a soft lavender color. Grows well, needs staking against wind when in bloom. Large flowers, multi-blooms. Grew best in full sun, well watered (not sandy) soil.
Plant info that came with this plant:
Height: 38", Space 18-30" apart, moist/fertile soil, Full sun in North/Part shade in South, Divide every 3-4 years for best blooms.