| 2122 | I. GERMANICA 'ALBA' | collected 1837 | TB | E | Very old white | 5.00 | ||
| 2046 | I. PALLIDA DALMATICA | Barr pre 1600 | TB | 39 | M | Self | Should have purple flush on the leaf base | 5.00 |
| 2440 | I. PALLIDA-blue | Toedt ? 1932? | MTB | E | Self | Lavender w/ slight blue cast | 4.00 | |
| 2661 | I. PALLIDA-purple | 1789? | TB | 24 | M | Self | Lavender w/ slight purple cast | 5.00 |
| 2048 | I. TROJANA | Kerner 1887 | TB | Bitone | S:light lavender blue, F:dark reddish purple, white at haft with maroon lines, B:yellow | 5.00 | ||
| 2047 | I.GERMANICA-VULGARIS | Lynn 1753 | TB | E | Bitone | S:medium grape, F:reddish grape, B:blue white | 5.00 | |
| 1912 | ICE CARNIVAL | Watkins 1950/54 | TB | 38 | M | Bitone | S:Light azure (orchid-blue), F:icy white; strong fragrance | 4.00 |
| 2437 | ICE FAIRY | Witt 1962/66 | MTB | 21 | M | Bicolor | S:white, F:light blue | 4.00 |
| 792 | ICE SCULPTURE | Hager 1973 | TB | 36 | M | Self | Pale blue | 6.00 |
| 1327 | IDA MARY PATTISON | Briscoe 1981 | IB | 17 | M | Self | Ruffled very pale blue with pale blue markings around gold B | 3.00 |
| 1848 | IDAHO CREAM | Smith 1960/61 | TB | 38 | M | Self | Big full wavy pale cream, B:cream | 5.00 |
| 2262 | IDAHO GOLD | Smith 1958/59 | TB | 40 | LM | Self | Deep yellow self, B:orange-yellow. | 4.00 |
| 2378 | IDLE DREAMS | Williamson 1993/93 | TB | 38 | EM | Plicata | S:salmon pink w/ dark raspberry pink markings, F:creamy salmon pink w/ wide plicata edge of dark raspberry pink, B:orange red; ruffled | 10.00 |
| 2097 | IDOL'S DREAM | Kererise 1981/82 | TB | 36 | E-M | Self | Ruffled medium yellow, B:yellow orange; slight fragrance | 7.00 |
| 1023 | IGLOO | Hager 1977/78 | TB | 38 | ML | Self | Blue-white to pale blue around midrib and hafts, B:pale yellow | 6.00 |
| 1480 | IMAGE MAKER | Williamson 1979 | TB | 34 | M-L | Bitone | S:light citrus lemon, F:full citrus lemon, B:yellow-orange | 6.00 |
| 1323 | IMAGINE | Blyth 1972 | TB | 34 | E-M | Bitone | S:orchid-pink, F:deeper orchid-pink with blue infusion around pink B | 6.00 |
| 853 | IMMOLATION | Hager 1977 | TB | 36 | M | Blend | Red-sienna blend, B:yellow | 6.00 |
| 850 | IMMORTALITY | Zurbrigg 1982 | TB | 30 | M,Re | Self | Ruffled pure white, B:white; slight sweet fragrance, very dependable rebloom | 5.00 |
| 1497 | IMPERSONATOR | Babson 1974 | TB | 38 | M | Self | Novelty: Flat TB S:none, they lay back on falls, F:full blue-violet, lighter area in center, B:white | 6.00 |
| 1763 | IMPOSSIBLE | Vallette 1957/60 | BB | 24 | M | Self | S:pale lemon-ice opening from purple buds, F:same color, deeper at haft, purple shows through when first open | 4.00 |
| 1293 | IN DREAMS | Blyth 1972 | TB | 34 | M-L | Self | Soft creamy apricot-buff | 6.00 |
| 2432 | IN TOWN | Blyth 1985/88 | TB | 38 | EM | Bitone | S:blue lavender, slightly deeper at midrib, F:velvety blue purple, 1/4" lavender edge, B:tangerine, lavender on tip | 8.00 |
| 2049 | INCA CHIEF | Mitsch 1952/52 | TB | 35 | ML | Self | Huge ruffled burnished golden bronze;described as "brilliant, lustrous, and vibrant. Mustard tan of vibrant tone. | 4.00 |
| 2659 | INDIAN CAPER | Brown 1988/89 | TB | 34 | EM | Self | Brown changing with age to bronze near center of F, B:orange | 7.00 |
| 1913 | INDIAN CHIEF | Ayres 1928/29 | TB | 36 | E | Bitone | S:light Indian red (bronzy violet), F:velvety darker Indian red blended w/ bronze (dahlia carmine), lines at haft, B:bright orange; prolific | 4.00 |
| 2016 | INDIAN JEWEL | Brown 1973 | SDB | 11 | L | Bitone | S:white, F:enamel blue blending to white at edge, B:white blending to yellow in throat | 3.00 |
| 131 | INDIAN POW WOW | Brown 1971 | SDB | 13 | EM | Bitone | S:creamy greenish tan, F:greenish yellow, red-brown wash, B:flax blue, veins at haft | 2.00 |
| 61 | INDIAN PRINCESS | Hamblen 1975 | TB | M-L | Bitone | S:greyed purple, F:violet, bordered with deeper S color, B:orange, with blue base at tip | 6.00 | |
| 1552 | INDIAN TERRITORY | Ghio 1979 | TB | 38 | EM | Self | Red-brown, B:same | 6.00 |
| 1667 | INDIGLOW | Schortman 1957/59 | TB | 34 | M-L | Self | Huge flowered violet-blue, B:orange to blue | 4.00 |
| 910 | INDIGO | Van Houtte 1854 | TB | Deep blue-purple | 5.00 | |||
| 1606 | INDIGO PRINCESS | Schreiner 1992/92 | TB | 39 | ML | Self | Ruffled deep violet, yellow B tipped blue | 10.00 |
| 2369 | INDISCREET | Ghio 1987/88 | TB | 38 | EM | S:magenta, F:salmon ground heavily stitched magenta at edges, B:tangerine | 8.00 | |
| 2389 | INDULGE | Nelson 1992/93 | TB | 32 | E-M | Self | S:orchid, deeper midrib, F:orchid center, deeper rose orchid edge, violet blue spot, wine hafts, B:gold orange; ruffled, laced, sweet frag | 10.00 |
| 1373 | INFATUATION | Corlew 1974 | TB | 32 | M | Self | Very light true pink, B:white, tipped tangerine-pink | 6.00 |
| 1001 | INFERNO | Schreiner 1973 | TB | 40 | M | Self | Rich ruby with velvety sheen of plum wine shadings, B:subdued orange-brown | 6.00 |
| 837 | INFINITE GRACE | Hamblen 1981 | TB | 36 | M | Bicolor | S:warm white, lightly flush pink, F:pink with lighter rims and amber hafts, B:red tipped whitish; vigorous | 6.00 |
| 2660 | INGA IVEY | Hamblen 1984/85 | TB | 36 | M | Self | S:rosy pink, F: lighter center w/ a wide laced rim of deeper toned pink, B:rosy pink; ruffled, flluted, spicy fragrance | 7.00 |
| 443 | INHERITANCE | Babson 1977 | TB | 36 | EM | Self | Pale orchid fading to white, B:full orchid | 6.00 |
| 2290 | INLAND PRINCESS | Hamner 1987/88 | TB | 37 | E-M | Self | Ruffled and heavily laced Spanish orange, small white area on F, B:orange | 7.00 |
| 2050 | INNOCENZA | Lemon 1854 | BB | E | Self | Very old white self | 5.00 | |
| 1103 | INSCRIPTION | Boushay 1978 | SDB | 13 | M | Self | S:mimosa yellow, F:slightly lighter with heliotrope thumbprint, B:tangerine, tipped yellow | 2.00 |
| 1027 | INSPIRATION POINT | Gibson 1981 | TB | 38 | ML | Plicata | S:blend of smoky violet and brown on yellow, veined dark violet, F:stitched smoky violet on yellow band, white signal, B:brownish yellow | 7.00 |
| 872 | INSTANT LOVE | Hamblen 1976 | TB | 34 | E-L | Bitone | S:light red, F:creamy light red, B:orange-red | 6.00 |
| 1547 | INSTANT PLEASURE | Gibson 1984 | TB | 38 | ML | Bicolor | S:yellow-orange, F:yellow-orange, flushed red-purple, 1/2" edge of red-purple, white area surrounding orange B; heavily ruffled | 8.00 |
| 970 | INSTIGATOR | Brown 1975 | TB | 38 | M-L | Bitone | S:aureolin yellow, F:heliotrope, with 3/8" band of carmel, B:yellow | 6.00 |
| 2201 | INSTRUCTOR | Innerst 1985 | TB | 36 | EM | Halo | S:cream to mid yellow, F:same, edged medium blue, B:blue tipped bronze; slight musky fragrance | 8.00 |
| 451 | INTERPOL | Plough 1972 | TB | 36 | ML | Self | Fluted deep purplish black, B:same with each hair tipped mustard; PBF | 6.00 |
| 1678 | INTO THE NIGHT | Schreiner 1989/ | TB | 36 | M | Bitone | S:deep blue-violet, F:velvety midnight purple rimmed in lighter blue-violet; ruffled and fluted | 8.00 |
| 492 | INTUITION | Ghio 1975/77 | TB | 33 | ML | Self | Flaring dark blue, B:green-brown; very beautiful | 6.00 |
| 65 | INVITATION | Schreiner 1982 | TB | 34 | VE,Re | Bicolor | S:white, slight blush of creamy pink at midrib, F:light pink-apricot, creamy yellow flash below B, B:deep orange; always in demand | 6.00 |
| 1217 | IRIS BOHNSACK | Ensminger 1981 | BB | 25 | M | Broken | White ground, interestingly striped with imperial violet, B:yellow, tipped violet | 5.00 |
| 1138 | IRIS IRENE | Gatty 1985 | TB | 30 | M-L | Bitone | S:cream flushed peach to orient pink, F:deeper buff, flushed peach, slightly paler in center, B:fire red; ruffled, laced and flaring | 8.00 |
| 1269 | IRISH HALO | Varner 1984 | SDB | 12 | E-M | Bicolor | S:white, F:light green, B:white tipped; ruffled, frag. | 2.00 |
| 2888 | IRISH LINEN | Fay 1954/58 | TB | 40 | M | Self | White self, B:yellow | 4.00 |
| 632 | IRISH SPRING | Roe 1972 | TB | 34 | M | Self | Ruffled white with pale green overlay on F, F:deeper green shoulders, B:pale lemon | 6.00 |
| 1445 | ISLAND FIESTA | Plough 1978 | TB | 35 | E-L | Bicolor | S:solid bluebird blue, F:white with brushed overall pattern of blue, hafts edged barium yellow, B:barium yellow | 6.00 |
| 2889 | ISLANDER | Benson 1959/60 | TB | 38 | M | Self | Gentian blue self, B: | 4.00 |
| 762 | ISLE OF CAPRI | Spahn 1976 | TB | 37 | EM | Self | S:pure orange, F:orange, deeper at haft, lighter near B, B:intense orange-red; ruffled | 6.00 |
| 2341 | ISOLINE | Vilmorin 1904 | TB | M | Bicolor | Bicolor | 4.00 |