Intermediate Bearded Iris (Iris 'Fro') in the Irises Database

Common names:
Give a thumbs up Intermediate Bearded Iris
Give a thumbs up Iris

Data specific to Irises (Edit)
Hybridizer: Goos & Koenemann
Year Of Registration: introduced prior to registration system
Year Of Introduction (May Differ From Registry): 1909
Classification: Intermediate Bearded (IB)
Bloom Season: Mid
Flower Patterns: Variegata

General Plant Information (Edit)
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 8b
Flowers: Showy
Underground structures: Rhizome
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Division
Child plants: 2 child plants

Japanese Irises: Dispelling the Prima Donna MythJapanese Irises: Dispelling the Prima Donna Myth
March 31, 2010

Some of my customers see the pictures of lovely Japanese irises on my website and say, "I wish I could grow some of those; they're so beautiful but so hard to grow." Are Japanese irises really that touchy? No, I don't think so.

(Full article17 comments)
Give a thumbs up

Discussion Threads about this plant
Thread Title Last Reply Replies
Crazy idea? by lilpod13 Nov 11, 2019 8:18 PM 13
Black Magic Woman v. Sharp Dressed Man by AndreaD Nov 4, 2019 2:29 PM 7
Protecting from cold by sallysmom Nov 4, 2019 2:40 PM 5
transplanting bearded iris-too late? by pinkruffles Oct 26, 2019 8:00 AM 2
Pictures of your vendor boxes by janielouy Nov 10, 2019 7:00 PM 11
What could this be? by evelyninthegarden Oct 22, 2019 10:02 PM 9
Iris by sjcoelho Oct 21, 2019 6:16 AM 6
Rare Blend by evelyninthegarden Oct 30, 2019 10:23 PM 18
What is it? by Flowersgalore Oct 11, 2019 9:48 PM 4
Monsignor height? by cinvasko Oct 6, 2019 12:03 PM 1
Best spreadsheet.... by evelyninthegarden Oct 13, 2019 10:15 PM 17
Aussie new releases 2019 by Totally_Amazing Oct 14, 2019 12:50 AM 4
Would love to see photos of your "black" iris! by cinvasko Sep 28, 2019 10:11 AM 14
One more post with planting questions... by cinvasko Sep 19, 2019 7:51 AM 3
Next year's orders... by cinvasko Sep 14, 2019 1:36 PM 9
Am I planting them correctly? by cinvasko Sep 29, 2019 3:52 AM 30
Bloom times defined... by cinvasko Sep 7, 2019 4:59 PM 11
TB Adoree by cinvasko Sep 7, 2019 2:15 PM 13
Tall or climbing companion plants with TB iris? by cinvasko Sep 25, 2019 7:00 PM 8
TB iris spacing in temporary beds? by cinvasko Oct 14, 2019 6:35 PM 26

« Add a new plant to the database

» Search the Irises Database: by characteristics or by cultivar name

« See the general plant entry for Irises (Iris)

« Visit the Irises forum

« The Irises Database Front Page

« The Plants Database Front Page

Today's site banner is by ge1836 and is called "LIGULARIA"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.