Tall Bearded Iris (Iris 'Old Boston') in the Irises Database

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

Data specific to Irises (Edit)
Hybridizer: Thomas Donahue
Year Of Registration: 1937
Year Of Introduction (May Differ From Registry): 1937
Classification: Tall Bearded (TB)
Bloom Season: Mid Late

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 9b
Flowers: Showy
Underground structures: Rhizome
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Division

Discussion Threads about this plant
Thread Title Last Reply Replies
Nothin' Could Be Finer Than to Be In Carolina - 2019 blooms by Lestv Sep 15, 2019 11:35 AM 774
California Dreaming.... by evelyninthegarden Nov 12, 2019 10:38 AM 1,031
2019 Orders Already! by LizinElizabeth Jun 25, 2019 7:21 AM 833
Blooms 2018 by cliftoncat Jan 2, 2019 4:17 PM 2,872
Jan's Rustic Garden by janwax Oct 13, 2019 9:19 PM 2,132
I got a box!!! - 2017 by Dachsylady86 Apr 27, 2018 2:59 AM 1,414
Roll call 2016 by Cuzz4short Jun 28, 2019 2:47 PM 553
Did you get a box? by Misawa77 Nov 23, 2015 9:30 AM 1,507
What did you do in the Iris garden today? by Paul2032 Nov 12, 2019 3:49 PM 17,359
Mindless chatter by Muddymitts Nov 12, 2019 8:14 PM 17,962
First Buys of 2015 by Lestv Mar 4, 2015 1:36 PM 587
Superstition 2015 introductions by Misawa77 Jul 4, 2015 12:04 PM 585
Door Prizes by Henhouse Dec 8, 2014 12:46 AM 55

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