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'Purissima' (William Mohr and Sydney B. Mitchell, 1927) TB, 48", Midseason bloom. Color Class-WW. Standards and falls pure white; good form; heavy substance. 'Argentina' x 'Conquistador'. Mohr-Mitchell, Salbach 1927. Orpington 1938, Van Tubergen 1938, P. C. Royal Horticultural Society 1933 Shown by Lady Hudson; 7 A xv.
note: Becuase of Mohr's untimely death in 1927 'Purissima' was not officially registered at the time, but it was recorded in the 1939 checklist.
See below:
| 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. |
| Garden Illustrated 55: 277, 13 May 1933 with illustration. |
| 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.] |
| 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. |
| FURTHER CULTURAL INFORMATION Here |
| I | Attachment | Action | Size | Date | Who | Comment |
|---|---|---|---|---|---|---|
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Purissima01.JPG | manage | 44 K | 04 Dec 2014 - 14:57 | TerryLaurin | Photo by Mary Hess-Bluebird Haven Iris Garden |
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Purissima02.JPEG | manage | 9 K | 10 May 2014 - 14:10 | TerryLaurin | Photo courtesy of Mike Lowe from original HIPS website |
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Purissima02.JPG | manage | 66 K | 29 Aug 2021 - 02:10 | TerryLaurin | Photo by Mary Hess-Bluebird Haven Iris Garden |
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Purissima04.JPG | manage | 95 K | 26 Aug 2016 - 03:20 | TerryLaurin | Photo by Judy Schneider-The Shady Spot |
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Purissima12BHI.jpg | manage | 181 K | 22 May 2019 - 18:15 | BetsyHiggins | Photo by Mary Hess-Bluebird Haven Iris Garden |
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PurissimaRT.jpg | manage | 27 K | 22 Jan 2012 - 20:01 | BetsyHiggins | Photo by Rick Tasco |
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purissima01.jpg | manage | 44 K | 07 Jun 2017 - 20:06 | TerryLaurin | Photo by Sandy Gessner Eggertson-Merlebleu Iris Garden-Manitoba,Canada |
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purissima5.JPG | manage | 127 K | 07 May 2023 - 20:24 | TerryLaurin | Photo by Jeff Bennett-Dry Creek Garden |
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purissima50.JPG | manage | 128 K | 05 Apr 2024 - 01:33 | TerryLaurin | Photo by Jeff Bennett-Dry Creek Garden |
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purissima51.JPG | manage | 307 K | 05 Apr 2024 - 01:33 | TerryLaurin | Photo by Jeff Bennett-Dry Creek Garden |
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purissima52.JPG | manage | 145 K | 05 Apr 2024 - 01:34 | TerryLaurin | Photo by Jeff Bennett-Dry Creek Garden |
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purissima53.JPG | manage | 131 K | 06 Mar 2025 - 14:52 | TerryLaurin | Photo by Jeff Bennett-Dry Creek Garden |
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purissima54.JPG | manage | 225 K | 05 Apr 2025 - 14:26 | TerryLaurin | Photo by Jeff Bennett-Dry Creek Garden |
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purissima55.JPG | manage | 188 K | 05 Apr 2025 - 14:27 | TerryLaurin | Photo by Jeff Bennett-Dry Creek Garden |
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purissima56.JPG | manage | 363 K | 12 Jul 2025 - 02:03 | TerryLaurin | Photo by Jeff Bennett-Dry Creek Garden |
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purissima9.JPG | manage | 199 K | 21 Nov 2020 - 22:24 | TerryLaurin | Photo by Christine Cosi-Iris en Perigord- France |
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purissima_fl.jpg | manage | 42 K | 12 Aug 2012 - 16:34 | %LDAP{"sAMAccountName=IrisP" format="$displayName"}% | |
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purissima_tb_mohr_mitchell_1927_atbluebirdhaven_2017b_sm.jpg | manage | 181 K | 22 May 2019 - 18:16 | BetsyHiggins | Photo by Phyllis A Wilburn |
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