Tall Bearded Iris (Iris 'Mary Lou') in the Irises Database

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

Data specific to Irises (Edit)
Hybridizer: Little
Year Of Registration: 1932
Year Of Introduction (May Differ From Registry): 1932
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
What Did You Lose Over Winter? by evelyninthegarden May 11, 2019 1:46 PM 26
TBs that make a clump quickly! by bluegrassmom Jun 17, 2019 3:11 PM 48
California Dreaming.... by evelyninthegarden Nov 12, 2019 10:38 AM 1,031
Bonnie's Bloomers a.k.a. Fellowship of the Garden by grannysgarden Oct 14, 2019 10:04 PM 1,392
What Historics are you growing/best growers? by UndyingLight Aug 29, 2019 8:38 PM 121
Blooms 2019 by cliftoncat Nov 12, 2019 4:14 AM 2,462
2019 Orders Already! by LizinElizabeth Jun 25, 2019 7:21 AM 833
Monty's Blue Ridge Gardens by UndyingLight Nov 11, 2019 6:18 PM 707
Your 2019 order wish list by creativeclover Sep 3, 2018 9:41 AM 60
Your Best Bloomers 2018 by urania1 Jun 10, 2018 9:03 PM 59
No Shows 2018 by urania1 Aug 21, 2018 2:27 PM 37
Mary's Garden 2018 by urania1 Jul 18, 2018 10:26 AM 162
Happy Easter Iris by Monetwwqi Apr 1, 2018 7:02 PM 3
Bonnie's Bloomers 2018 by grannysgarden Mar 22, 2019 11:45 AM 1,782
My least favorite iris by LynnDel May 31, 2019 3:45 AM 267
Blooms 2018 by cliftoncat Jan 2, 2019 4:17 PM 2,872
Iris pollination by afytexas Jan 20, 2018 9:52 AM 28
"Goners" 2018 by William Oct 19, 2018 6:44 PM 590
What is your weather today in your iris garden? by evelyninthegarden Nov 12, 2019 10:34 AM 2,701
I'm REALLY looking forward to this one!... by janwax Nov 21, 2018 10:00 PM 1,064

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