(La) 'Ianthina' 1931, Alexander 'Ianthina' (Edward Johnston Alexander, R. 1931). Vinic; R.; Royal Gardens describes as "3 ft. One of the richest deep blues. Flowe...
(LA) 'Iberville' 1933, Nicholls, Jr. 'Iberville' (Jesse Nicholls, Jr., R. 1933) LA. Midseason late bloom. Color Class B1M. Royal Iris Gardens 1933. See below: *...
■(LA) 'Ichiban' 1986, Faggard 'Ichiban' (Albert Faggard, R. 1984). Seedling FF 2 80. LA, 36" (91 cm), Early bloom. Wine red to fuchsia red, long and narrow gree...
(LA) 'Ida Jack Hall' 1950, Trichel 'Ida Jack Hall' (Lillian Trichel, R. 1950). AH/LA, 36" (91 cm), Midseason bloom. Color Class RD1, Maroon red self. Unknown pare...
(LA) 'Ikoni' 1936, Washington 'Ikoni' ( Thomas Washington, R. 1935), LA. Color Class B1M. IKONI (Washington 1936) Flaring open flowers of cobalt blue, a self with...
■(LA) 'Image' 1998, Dunn 'Image' ( Mary Dunn, R. 1998) Seedling 240 6. LA, 33" (84 cm), Early midseason bloom. Blue lilac; style arms cream. 'Lina' X 'Makebelieve...
■(LA) 'Imagined Oceans' 2007, Jackson 'Imagined Oceans' (Peter Jackson, R. 2007) Seedling 4F 2. LA, 49" (125 cm), Early midseason bloom. Standards medium blue vio...
■(LA) 'Impassioned' 1995, Taylor 'Impassioned' (John C. Taylor, R. 1995). LA, 35" (89 cm). Midseason bloom. White (RHS 155D) with heavy green veining; green signa...
(LA) 'Imperial Magician' 1990, Taylor 'Imperial Magician' ( John C. Taylor, R. 1990). Seedling OL 138 A. LA, 47" (120 cm), Midseason bloom. Standards marbled ligh...
■(LA) 'In The Navy' 2014, Vaughn 'In The Navy' ( Kevin Vaughn, R. 2009). Seedling O22 1. LA, 40 47" (102 119 cm), Early, midseason, late bloom. Standards navy blu...
(LA) 'Ina Garten' 2008, Vaughn 'Ina Garten' ( Kevin Vaughn, R. 2008) Seedling O 1 1. LA, 40 46" (102 117 cm), Early, midseason, late to very late bloom. Standards...
(LA) 'Independence Day' 1944, Riggs 'Independence Day' (Edmond Riggs, R. 1944) LA. Color Class S7L. Collected wild. Recorded as Vinie in 49 Checklist; Class renam...
■(LA) 'Inn Keeper' 1997, Taylor 'Inn Keeper' (John C. Taylor, R. 1997). Seedling UL 29 4. LA, 47" (120 cm). Midseason late bloom. Standards and Fallls violet blue...
(LA) 'Insider' 1998, Taylor 'Insider' ( John C. Taylor R. 1996). Seedling UL 20 2. LA, 43" (110 cm). Midseason late bloom. Standards yellow, edged red brown; styl...
(LA) 'Inspiring' 1999, Taylor 'Inspiring' ( John C. Taylor, R. 1998). Seedling UL 34 1. LA, 39" (100 cm). Midseason bloom. Purple violet, yellow signal on all pet...
■(LA) 'Intense Study' 1986, Betts 'Intense Study' ( T. J. Betts, R. 1986). Seedling 746H. LA, 36" (91 cm), Early bloom. Vibrant dark violet blue (RHS 83A), yell...
(LA) 'Iochroma' 1931, Small 'Iochroma' (John Kunkel Small, R. 1931). Vinic; LA, Color Class R1D; "Flower stalk erect: sepals recurved spreading, within, the claw ...
(LA) 'Iocyanea' 1931, Small 'Iocyanea' (John Kunkel Small, R. 1931). Vinic; B7D; Described by Small as "Flower stalk erect, strict, rigid: sepals falls spreadin...
(LA) 'Ira S. Nelson' 1969, Arny 'Ira S. Nelson' (Charles W. Arny, R. 1969). LA, 36" (91 cm), Midseason to late bloom. Color Class R1, Rose bengal self; bright yel...
(LA) 'It's Cool' 1991, Taylor 'It's Cool' ( John C. Taylor, R. 1991). Seedling OL 143 1. LA, 39" (100 cm). Early midseason bloom. Pale mauve (RHS 69D), veined dar...