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Tall Bearded Iris
Iris 'Absolute Treasure'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Absolute Treasure
Hybridized by Tasco
Registered or introduced: 2005
» View all varieties of Iris

Class:

Tall Bearded (TB)

Height:

36-48 in. (90-120 cm)

Spacing:

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

18-24 in. (45-60 cm)

Hardiness:

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

Danger:

Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Light Blue

Medium Blue

Bloom Time:

Midseason (M)

Foliage:

Herbaceous

Other details:

Flowers are fragrant

Average Water Needs; Water regularly; do not overwater

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:

Non-patented

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

Allow cut surface to callous over before planting

Seed Collecting:

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

Awards (if applicable):

Honorable Mention

Regional

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

Vail, Arizona

Bakersfield, California

Macy, Indiana

Tupelo, Mississippi

Robertsville, Missouri

Las Cruces, New Mexico

Lawton, Oklahoma

Simpsonville, South Carolina

Greeneville, Tennessee

Blossom, Texas

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Gardeners' Notes:

1
positive
2
neutrals
0
negatives
RatingContent
Neutral

On May 6, 2014, MatildaW from Melbourne
Australia wrote:

The John C. Wister Medal - 2013

Positive

On Apr 19, 2014, eolivas103 from Las Cruces, NM (Zone 8a) wrote:

I was after a very blue Iris and had reserached this site, gardening blogs, etc; to find what types others thought were the bluest. This one was one that was listed often and I am very happy with the color. Yes, it is an absolute treasure. It's tall. It's at approx 36" and this is a first season blooming. Planted Fall 2013 and Bloomed this Spr 2014.

Neutral

On Jul 25, 2008, Joan from Belfield, ND (Zone 4a) wrote:

Awards: Honorable Mention 2008