Standard Dwarf Bearded Iris (Iris 'Oh Canada') in the Irises Database

Common names:
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Data specific to Irises (Edit)
Hybridizer: Thomas Johnson
Year Of Registration: 2015
Year Of Introduction (May Differ From Registry): 2015
Seedling Number: TE116A
Classification: Standard Dwarf Bearded (SDB)
Registered Height: 13 inches (33 cm)
Bloom Season: Early
Bloom Color Classification: Light blue
Bloom Color Description: Light blue standards; blue wash on falls, central maroon spot with white rays radiating from beards
Beard Color: Yellow in throat, ends blue with white tips
Style Arm Color: Light blue
Fragrance: Slight
Awards: Honorable Mention: 2017

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
Parentage: Riveting X Capiche


Growing Irises in Spite of BorersGrowing Irises in Spite of Borers
March 10, 2014

Iris gardeners encounter many natural enemies of iris plants, such as leaf spot, soft rot, mold, and bacterial infections, but how much do we know about iris borers?

(Full article7 comments)
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Posted by lilpod13 (SFBA - Zone 10a) on Feb 4, 2019 1:51 PM

Interesting phenomena with my Oh Canada. The first bloom of the season the past two years has got stuck and failed to open. Tom said that when the flowers are frozen, that can prevent opening, but our temperature has been above freezing. However, there has been a lot of moisture, rain, that could be causing some issue with the petals failing to separate. I'm asking if anyone else in our community has seen this since I haven't had any issue with any other dwarf iris sticking and ultimately not opening?

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Discussion Threads about this plant
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Monty's Blue Ridge Gardens by UndyingLight Mar 21, 2019 11:41 PM 338
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After well nigh 50 years of growing iris .................. by TBMan Jun 17, 2018 8:48 AM 87
Theoretical borer musings by caitlinsgarden Jul 4, 2018 10:07 AM 45
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A Record Year by ARUBA1334 Apr 8, 2018 8:16 PM 818
Books on Irises by evelyninthegarden Sep 19, 2018 10:16 PM 7
Historic Iris Preservation Society sale by DaveinPA Jul 30, 2017 8:53 AM 22
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What is your favorite iris? (that you currently own and have seen in bloom) :) by Grace_smith May 5, 2018 11:40 AM 86
Need urgent advice about a grower by Mesopotamica May 16, 2017 11:31 AM 8
My Enchanted Garden by Dachsylady86 Jan 30, 2018 5:14 PM 959
My Bloomers are showing too! by tveguy3 Nov 1, 2017 9:30 PM 943
I got a box!!! - 2017 by Dachsylady86 Apr 27, 2018 2:59 AM 1,414

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