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■(TB) 'Purissima'

1927, Mohr-Mitchell

'Purissima' (William Mohr and Sydney B. Mitchell, Not registered*) TB, 48", Midseason bloom. Color Class-WW. Standards and falls pure white; good form; heavy substance. 'Argentina' x 'Conquistador'. Mohr-Mitchell, Salbach 1927.

No written record of registration year in either the 1939 or 1949 A.I.S. checklists.

See below:
Purissima01.JPGpurissima01.jpgPurissima02.JPEGPurissima02.JPGPurissima04.JPGPurissima12BHI.jpgpurissima5.JPGpurissima50.JPGpurissima51.JPGpurissima52.JPGpurissima9.JPGpurissima fl.jpgpurissima tb mohr mitchell 1927 atbluebirdhaven 2017b sm.jpgPurissimaRT.jpg


From Carl Salbach catalog, 1927: PURISSIMA. It is going to be very hard to improve on this Argentina X Conquistador seed- ling for a pure white of great size, perfect form and heavy substance, this last a most important factor in white irises. These qualities, with its vigor and its tall branched stems, account for the rating of 96 given it by a jury of A.I.S members, all seedling raisers themselves, who judged it in the garden last season. This is the variety referred to by Mr. Jacob Sass in A.I.S. Bulletin 21, page 36, which he says he doesn’t expect to see surpassed. $25.00.
From J. C. Nicholls catalog, 1931: PURRISSIMA (Mitchell 1927) 46 inches. $4.00. Large wonderful white. Thrives and blooms here (Ithaca, NY) if given perfect drainage and if no covering be used for winter. Clear bottom of plants in spring to let in the sunrays.
The very old Purissima is for mild climates only, and that garden is fortunate that can grow it to perfection. The big bud is blue, the great blossom a crisp, sparkling white with slight venation of pale sea green. [Lila McCombs, “A Critical Evaluation of Older Irises”, The Bulletin of the American Iris Society, No. 110 (July 1948): 59.]


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.

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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.


-- Main.RPries - 2011-03-07
I Attachment Action Size Date Who Comment
Purissima01.JPGJPG Purissima01.JPG manage 44 K 04 Dec 2014 - 14:57 Main.TLaurin Photo by Mary Hess-Bluebird Haven Iris Garden
Purissima02.JPEGJPEG Purissima02.JPEG manage 9 K 10 May 2014 - 14:10 Main.TLaurin Photo courtesy of Mike Lowe from original HIPS website
Purissima02.JPGJPG Purissima02.JPG manage 66 K 29 Aug 2021 - 02:10 Main.TLaurin Photo by Mary Hess-Bluebird Haven Iris Garden
Purissima04.JPGJPG Purissima04.JPG manage 95 K 26 Aug 2016 - 03:20 Main.TLaurin Photo by Judy Schneider-The Shady Spot
Purissima12BHI.jpgjpg Purissima12BHI.jpg manage 181 K 22 May 2019 - 18:15 Main.Betsy881 Photo by Mary Hess-Bluebird Haven Iris Garden
PurissimaRT.jpgjpg PurissimaRT.jpg manage 27 K 22 Jan 2012 - 20:01 Main.Betsy881 Photo by Rick Tasco
purissima01.jpgjpg purissima01.jpg manage 44 K 07 Jun 2017 - 20:06 Main.TLaurin Photo by Sandy Gessner Eggertson-Merlebleu Iris Garden-Manitoba,Canada
purissima5.JPGJPG purissima5.JPG manage 127 K 07 May 2023 - 20:24 Main.TLaurin Photo by Jeff Bennett-Dry Creek Garden
purissima50.JPGJPG purissima50.JPG manage 128 K 05 Apr 2024 - 01:33 Main.TLaurin Photo by Jeff Bennett-Dry Creek Garden
purissima51.JPGJPG purissima51.JPG manage 307 K 05 Apr 2024 - 01:33 Main.TLaurin Photo by Jeff Bennett-Dry Creek Garden
purissima52.JPGJPG purissima52.JPG manage 145 K 05 Apr 2024 - 01:34 Main.TLaurin Photo by Jeff Bennett-Dry Creek Garden
purissima9.JPGJPG purissima9.JPG manage 199 K 21 Nov 2020 - 22:24 Main.TLaurin Photo by Christine Cosi-Iris en Perigord- France
purissima_fl.jpgjpg purissima_fl.jpg manage 42 K 12 Aug 2012 - 16:34 IrisP  
purissima_tb_mohr_mitchell_1927_atbluebirdhaven_2017b_sm.jpgjpg purissima_tb_mohr_mitchell_1927_atbluebirdhaven_2017b_sm.jpg manage 181 K 22 May 2019 - 18:16 Main.Betsy881 Photo by Phyllis A Wilburn
Topic revision: r27 - 05 Apr 2024, TLaurin
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