Photo by Melody

PlantFiles: Tall Bearded Iris
Iris 'Germanica'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Germanica
Additional cultivar information: (aka Grandmother's Blue Flag)

» View all varieties of Iris

7 members have or want this plant for trade.

Tall Bearded (TB)

18-24 in. (45-60 cm)
24-36 in. (60-90 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
Sun to Partial Shade

Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Bloom Time:
Early (E)
Early midseason (EM)


Other details:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater
Suitable for growing in containers

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:
Allow pods to dry on plant; break open to collect seeds

Awards (if applicable):
Unknown - Tell us

Click thumbnail
to view:

By themikesmom
Thumbnail #1 of Iris  by themikesmom

By themikesmom
Thumbnail #2 of Iris  by themikesmom

By harloiris
Thumbnail #3 of Iris  by harloiris

By harloiris
Thumbnail #4 of Iris  by harloiris

By TexasDollie
Thumbnail #5 of Iris  by TexasDollie

By TexasDollie
Thumbnail #6 of Iris  by TexasDollie


1 positive
1 neutral
No negatives

Gardeners' Notes:

Neutral TexasDollie On Mar 5, 2014, TexasDollie from Windcrest, TX (Zone 8b) wrote:

Growing this in south-central TX right now...lovely iris, not strongly scented, and at least with the ones I'm growing, the flowers are not very large compared to the Dauntless that bloomed nearby.

Positive themikesmom On Sep 1, 2011, themikesmom from Concord, NC wrote:

This is the the domesticated version 'Germanica' which was derived from the Wild Iris germanica, which can be found at The wild form which was taken by Linneus and introduced to the general public in 1753 has over the last two centuries been bred with a neglecta and since has become much taller than the wild iris germanica of Linneus's originally description of 21" inches in height in it's now domesticated taller form germanica vulgaris. the wild shorter form is so identical to the iris 'Dorothea' by Caparne 1901, which I understand is an improved version of the wild Germanica Species of the same height, that it makes me wonder how much is actually wild germanica by Linneus from Italy, and how much is really Caparne's 'Dorothea' from 1901. Grandmother's Blue Flag's bloom time is Early to EM blooming season. I've seen mine reach more than 36 inches tall. Sandra.


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

Harlowton, Montana
Jersey City, New Jersey
Concord, North Carolina
San Antonio, Texas

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America