Tall Bearded Iris (Iris 'May Day') in the Irises Database

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

Data specific to Irises (Edit)
Hybridizer: David Hall
Year Of Registration: 1939
Year Of Introduction (May Differ From Registry): 1939
Classification: Tall Bearded (TB)
Bloom Season: Early
Awards: Honorable Mention: 1939

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
Parentage: (Golden Flare x Rameses') X Jean Cayeux
Child plants: 24 child plants

Discussion Threads about this plant
Thread Title Last Reply Replies
What is it? by Flowersgalore Oct 11, 2019 9:48 PM 4
Irises by Bindilou Sep 2, 2019 2:18 AM 7
Mid-America Surplus Sale by cbunny41 Sep 23, 2019 10:47 AM 105
Iris records by ttkc4704 Aug 15, 2019 9:28 PM 16
Can an iris rebloom if it never bloomed in the Spring? by bxncbx Aug 31, 2019 8:06 AM 11
Growing iris in pots by bluegrassmom Aug 3, 2019 10:28 AM 6
Preparing Iris Beds by AndreaD Aug 4, 2019 7:34 PM 17
Summary of my iris season 2019 by Tienito Jul 18, 2019 1:38 PM 4
Comparison of "Most Popular" Iris to "Most Relevant" by ShawnSteve Jul 25, 2019 6:01 AM 35
Iris division and replanting by cbhughes Jul 14, 2019 8:10 PM 3
Sowing, slightly immature, Iris seeds ? by ShawnSteve Jul 1, 2019 3:40 PM 9
favorite iris by irisarian Jul 1, 2019 1:14 AM 24
What's the allure over Dusky Challenger? by lilpod13 Jul 1, 2019 8:20 PM 38
Do you have some favorite iris photos to share? by janwax Jun 27, 2019 3:45 PM 21
collapsing iris stems by treah Jun 6, 2019 8:30 AM 7
Have your seedlings bloomed by Charriet Jul 12, 2019 12:29 AM 26
I got a box! 2019 by evelyninthegarden Oct 6, 2019 5:38 PM 516
Hillside Happenings '19 by Snork Jun 29, 2019 2:47 PM 159
What Iris should have won a Dykes and didn't? by Paul2032 May 22, 2019 11:45 AM 13
Iris bed disaster by ngoodman Jun 3, 2019 9:23 AM 20

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