Tall Bearded Iris (Iris 'Top Hat') in the Irises Database

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

Data specific to Irises (Edit)
Hybridizer: Bernard Schreiner
Year Of Registration: 1952
Year Of Introduction (May Differ From Registry): 1954
Classification: Tall Bearded (TB)
Registered Height: 40 inches (102 cm)
Bloom Season: Late
Bloom Color Classification: Violet
Flower Patterns: Self
Bloom Color Description: Violet, intense indigo with red sheen
Awards: Honorable Mention: 1954

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: Parentage unknown
Child plants: 6 child plants

Garden Tour: DahtzuGarden Tour: Dahtzu
July 15, 2012

Let's take a little trip to North Carolina to see the gardens that Dahtzu has created. I think you'll really enjoy the beauty of this visit.

(Full article25 comments)
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Discussion Threads about this plant
Thread Title Last Reply Replies
An iris cocktail by Tienito Jan 26, 2020 6:49 PM 3
West Coast Bloom Season 2019 by ARUBA1334 Jan 27, 2020 1:52 PM 82
2020 Orders by BlueFlagFan Jan 27, 2020 12:29 PM 107
Close Encounters in the Garden by janwax Jan 14, 2020 10:54 PM 44
What are your iris plans for the New Year? by Polymerous Jan 23, 2020 4:29 PM 17
Iris pictures to get us through in the winter... by evelyninthegarden Jan 27, 2020 1:49 PM 168
Bloom irregularity by ttkc4704 Jan 22, 2020 12:35 PM 11
What is your favorite MTB? by LynnDel Dec 13, 2019 9:29 PM 20
Who among you by DaisyDo Dec 12, 2019 11:01 AM 22
A couple seedlings to critique by tveguy3 Jan 6, 2020 11:15 PM 147
What Keppel 3 (or more) favorites did you see on his website? by evelyninthegarden Dec 6, 2019 8:36 AM 24
Keeping Iris corms over winter by BowNancy Dec 2, 2019 6:39 PM 2
2019 Seedlings by KentPfeiffer Jan 27, 2020 1:47 PM 166
Black Magic Woman v. Sharp Dressed Man by AndreaD Nov 4, 2019 2:29 PM 7
IRIS DARDANUS question by cwalke Nov 17, 2019 7:09 AM 4
Iris by sjcoelho Oct 21, 2019 6:16 AM 6
Iris Database by evelyninthegarden Oct 17, 2019 9:19 PM 8
What is it? by Flowersgalore Oct 11, 2019 9:48 PM 4
Am I planting them correctly? by cinvasko Sep 29, 2019 3:52 AM 30
Mid-America Surplus Sale by cbunny41 Sep 23, 2019 10:47 AM 105

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