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Standard Dwarf Bearded Iris 'Boo'

Iris pumila

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: pumila (POO-mil-uh) (Info)
Cultivar: Boo
Hybridized by Markham
Registered or introduced: 1971
» View all varieties of Iris


Standard Dwarf Bearded (SDB)


6-12 in. (15-30 cm)

12-18 in. (30-45 cm)


9-12 in. (22-30 cm)

12-15 in. (30-38 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)

Sun Exposure:

Full Sun


Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:


White/Near White

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):

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:

Anchorage, Alaska

Sherwood, Arkansas

Chico, California

Durham, Maine

Blanchard, Michigan

Marquette, Michigan

Robertsville, Missouri

Auburn, New Hampshire

Los Alamos, New Mexico

Belfield, North Dakota

Coshocton, Ohio

Lancaster, Pennsylvania

Greeneville, Tennessee

Woodlawn, Tennessee

Tomah, Wisconsin

show all

Gardeners' Notes:


On May 2, 2013, Eloy from Lancaster, PA wrote:

I recently discovered these little gems, being earlier forerunners to the tall irises. I live in Lancaster, Pennsylvania, and this is one cool little iris. It produces pure white standards and blue-purple falls, and it has a sweet fragrance. This color combo is just the opposite of the 'Fairy Ring' iris, which has the same color combo and sweet fragrance, but the color pallet is inverted having blue-purple standards and pure white falls. I recommend these little cuties for all iris buffs.


On Apr 7, 2009, atcps from WOODLAWN, TN wrote:

This is a wonderful little iris. I purchased four colors from mail order about 5 years ago. It took three years before they bloomed, but now they all bloom wonderfully. They rarely need dividing like the tall bearded irises always do every other year here in Tennessee, and are faithful, drought tolerant, and easy to grow.


On Jan 26, 2009, Mainer from Durham, ME (Zone 3a) wrote:

Proving very hardy to my zone and is in the raised wooden bed because it is a color that goes with most anything in the triangle.