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Tall Bearded Iris 'High Octane'


Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: High Octane
Hybridized by Keppel
Registered or introduced: 2007
» View all varieties of Iris


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

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Pale Yellow

Maroon (Purple-Brown)

Bloom Time:

Late Midseason (MLa)



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):

Unknown - Tell us

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:

Rescue, California

Robertsville, Missouri

Greeneville, Tennessee

Gardeners' Notes:


On Jan 29, 2008, Marilynbeth from Hebron, KY wrote:

"Description courtesy of Keith Keppel, used by permission"

High Octane

42" ML (Tangled Web X (Charleston x ((Rosariea x ((Rancho Rose x (Flamenco sib x (Roundup sib x April Melody ))) x Gigolo)) x Power Surge)))

Tall stalks with up to three branches, eight or nine buds. Lots of energy here, a plicata with reddish brown standards barely showing pale yellow ground, atop falls with wide, dark port wine borders which dot and ray into the vibrant golden lemon central area. Inconspicuous mustard brown beards. If you want something louder, get yourself a boom box.
Seedling #01-40A