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■(TB) 'Deep Black'

1955, Cook

'Deep Black' (Paul Cook, R. 1953) Seedling 9951. TB, 36" (91 cm). Late bloom. Self of "black" violet (blackish violet, Ridgway). Beard Roslyn blue (Ridgway). 'Black Forest' x (seedling 7847: ('Captain Wells' x 'Indiana Night') X (('Modoc x 'Black Wings') x 'Indiana Night')). Longfield 1955. High Commendations 1951, 1953. Honorable Mention 1955; Judges' Choice 1955, Judges' Choice 1956; Award of Merit 1957.

See below:
Photo by Exline Iris GardenDeep BlackTaken at Exline Gardens, 2014Photo by Seagate Irises-United KingdomPhoto by Seagate Nurseries-Long Sutton Bypass-Long Sutton-United KingdomPhoto scanned from the Bee Warburton slide collectionPhoto scanned from the Bee Warburton slide collectionPhoto by Kelways-United KingdomPhoto by Mary Hess-Bluebird Haven Iris GardenPhoto by Iriszkert Szasz-Hungary.Photo by Iris of Sissinghurst-United KingdomPhoto scanned from the 1964 C.A. Cruickshank catalogue by Terry LaurinPhoto by Exline Iris Garden


From Longfield Iris Farms catalog, 1955: DEEP BLACK (No. 9951) (Black Forest X Cook dark seedling) From the moment this striking "black" Iris unfolded among the seedlings, it has been and continues to be the favorite of garden visitors. Despite its extreme darkness, it is a lustrous, rich addition to Mr. Cook's already fine list of dark introductions. Standards are deep blackish violet of glossy finish; falls are solid jet black velvet from haft to outer end; the whole rich color effect is enhanced by bright deep violet beards. Flowers medium to large, of excellent form and good substance. Stems erect, branched at middle, 3 feet tall. Plant of sturdy growth, hardy, dependable in bloom. Midseason-late. (Because of Deep Black's popularity, pre-catalogue sales have nearly booked all stock for this year.) $20.00.
From Fleur De Lis Gardens catalog 1956: DEEP BLACK (Cook 1955) ML. 36 in (Black Forest x (Dark Sdlg.). The newest and undoubtedly the darkest of Mr. Cooks'several fine black iris. The flowers are medium large and of heavy substance and rich glossy finish. Standards are very deep blackish violet and the fallare solid jet black with a velvety finish. The clean hafts and dark violet beard add to the depth. A real beauty. H. M. 1955. Net 20.00.


Quick Summary of Cultural Directions

Hardiness Zones 4-8 for most varieties, Some cultivars tolerate colder, others tolerate warmer zones (please comment in comment box with your location if this cultivar grows well in zone 3, 4, 9, or 10.)
Exposure Prefers full sun for optimal performance, may still bloom in half-day shade
Water: Prefers well drained good garden soil, Tolerant of dry conditions in established plants, Intolerant of swampy conditions.
PH Prefers Neutral to basic solis 6.1 to 8.5, quite toleranr of more extreme conditions
Fertilizer Prefers rich conditions on relatively inorganic soils.

BobPries - 21 Apr 2019

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Your Observations Are Valued. Please make note of bud count, branching, purple based foliage and bloom time, etc. Because these are affected by climate, note date, year and geographic location and write these and other comments in the comment box below.


-- RolandDejoux - 2010-03-25
I Attachment Action Size Date Who Comment
DeepBlackEI.jpgjpg DeepBlackEI.jpg manage 39 K 11 Dec 2012 - 15:27 BetsyHiggins Photo by Exline Iris Garden
Deep_Black.JPGJPG Deep_Black.JPG manage 70 K 01 Feb 2011 - 15:49 IrisP  
Deep_Black_Cook_1955.jpgjpg Deep_Black_Cook_1955.jpg manage 73 K 17 Feb 2017 - 19:15 DavidPotembski Taken at Exline Gardens, 2014
deep01.jpgjpg deep01.jpg manage 76 K 07 Jun 2015 - 02:45 TerryLaurin Photo by Exline Iris Garden
deepblack01.jpgjpg deepblack01.jpg manage 21 K 12 Sep 2014 - 17:42 TerryLaurin Photo by Seagate Irises-United Kingdom
deepblack010.JPGJPG deepblack010.JPG manage 210 K 08 Feb 2024 - 13:19 TerryLaurin Photo by Seagate Nurseries-Long Sutton Bypass-Long Sutton-United Kingdom
deepblack02.JPGJPG deepblack02.JPG manage 74 K 27 Jun 2014 - 15:58 TerryLaurin Photo scanned from the Bee Warburton slide collection
deepblack03.JPGJPG deepblack03.JPG manage 50 K 27 Jun 2014 - 16:00 TerryLaurin Photo scanned from the Bee Warburton slide collection
deepblack04.jpgjpg deepblack04.jpg manage 61 K 25 Feb 2016 - 03:59 TerryLaurin Photo by Kelways-United Kingdom
deepblack09.JPGJPG deepblack09.JPG manage 107 K 14 Aug 2021 - 21:10 TerryLaurin Photo by Mary Hess-Bluebird Haven Iris Garden
deepblack1.jpgjpg deepblack1.jpg manage 37 K 27 Nov 2018 - 21:49 TerryLaurin Photo by Iriszkert Szasz-Hungary.
deepblack3.jpgjpg deepblack3.jpg manage 76 K 23 Jan 2014 - 20:31 TerryLaurin Photo by Iris of Sissinghurst-United Kingdom
deepblack9.JPGJPG deepblack9.JPG manage 343 K 09 Nov 2020 - 16:54 TerryLaurin Photo scanned from the 1964 C.A. Cruickshank catalogue by Terry Laurin
Topic revision: r30 - 08 Feb 2024, Harloiris
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