Difference: TbCatalyst (r22 vs. r21)
■(TB) 'Catalyst'
1980, Keppel
'Catalyst' (Keith Keppel, R. 1979). Seedling# 75-83A. TB, height 35" (89 cm), Midseason bloom. Standards sunflower (M&P 9-L-4) touched with golden glow (9-L-6) at base; Falls darker, velvety yellow; yellow-orange beard. 'Generosity' X seedling# 72-5B: (((('Frances Kent' x 'Mary Randall') x (seedling# 60-183-Q: Sexton seedling# 60 x 'Golden Gene')) x ('Denver Mint' x seedling# 60-183-0)) x ('Radiant Light' x ((('Golden Gleam' x 'Hallmark') x (Sexton seedling# 60: 'Gail' x 'Techny Chimes')) x seedling# 60-183A))). Keppel 1980.
See below:
References:
| From AIS Bulletin #236 January 1980 Introducing CATALYST (Keppel) M 35". Clear, bright sunflower yellow-not gold-with falls a bit darker and with a velvet finish. Beards yellow-orange. Generosity X orange seelding inv.Frances Kent, Mary Randall, Gail, Techny Chimes, Golden Gene, Denver Mint, Radiant Light, Golden Gleam, Hallmark. #75-83A. $25.00. Keith Keppel. |
| Some want to classify CATALYST (Keppel '80) as intense yellow rather than gold, but this one seems every bit as gold as the others. Regardless, CATALYST seems to have everything an iris should have, with ruffled flowers on widely branched tall, multi-budded stalks. (Kenneth Mohr, 1983. AIS Bulletin, July 1983, p. 35). |
Culture
Quick Summary of Cultural Directions
FURTHER CULTURAL INFORMATION  |
|---|
| 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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| I | Attachment | Action | Size | Date | Who | Comment |
|---|---|---|---|---|---|---|
 jpg | Catalyst.jpg | manage | 48 K | 30 Dec 2009 - 03:12 | MichaelGreenfield | Photo by Mike Greenfield |
| jpg | Catalyst01.jpg | manage | 131 K | 14 Sep 2017 - 18:33 | Main.TLaurin | Photo by Amazing Iris Garden-New Zealand |
| jpg | Catalyst5.jpg | manage | 37 K | 28 Nov 2013 - 14:40 | Main.TLaurin | Photo by South Jersey Iris |
| jpg | Catalyst6.jpg Catalyst50.jpg | manage | 75 38 K | 21 Mar 2014 19 Apr 2022 - 02:30 12:43 | Main.TLaurin | Photo by Blue J South Jersey Iris |
| jpg | CatalystBJ.jpg Catalyst6.jpg | manage | 75 K | 02 Feb 2012 21 Mar 2014 - 22:59 02:30 | Main.Betsy881 Main.TLaurin | Photo by Blue J Iris |
 JPG jpg | Catalyst_Keppel_80.JPG CatalystBJ.jpg | manage | 62 75 K | 04 Jan 2010 02 Feb 2012 - 11:32 22:59 | Main.Laymont+ Main.Betsy881 | Photo by Dejoux in my Blue J Iris garden : sud-ouest France |
| jpg JPG | catalyst01.jpg Catalyst_Keppel_80.JPG | manage | 46 62 K | 20 Aug 2015 04 Jan 2010 - 20:02 11:32 | Main.TLaurin Main.Laymont+ | Photo by Amazing Iris Garden-New Zealand Dejoux in my garden : sud-ouest France |
| jpg | catalyst08.jpg catalyst01.jpg | manage | 144 46 K | 28 20 Aug 2020 2015 - 00:22 20:02 | Main.TLaurin | Photo by Christine Cosi-France Amazing Iris Garden-New Zealand |
| jpg | catalyst09.jpg catalyst08.jpg | manage | 186 144 K | 19 Apr 28 Aug 2020 - 02:37 00:22 | Main.TLaurin | Photo by Christine Cosi-France |
| jpg | catalyst4.jpg catalyst09.jpg | manage | 62 186 K | 07 Nov 2013 19 Apr 2020 - 20:30 02:37 | Main.TLaurin | Photo by Alain Chapelle-France Christine Cosi-France |
| jpg | catalyst4.jpg | manage | 62 K | 07 Nov 2013 - 20:30 | Main.TLaurin | Photo by Alain Chapelle-France |
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