Total number of azaleas: [261]
| Cultivar | Group | Ref | Type | Color | Bloom Time | |
|---|---|---|---|---|---|---|
| ‘I Remember April’ | Carlson | IRRC04 | dec | |||
| ‘Ibis’ | Beltsville | Galle87 | evg | Pink-Light | ||
| ‘Ibis’ | Mussig | IRRC04 | evg | |||
| ‘Ibis Rose’ | Indian | IRRC04 | evg | |||
| ‘Icarus’ | Exbury | Galle85 | dec | |||
| ‘Ice Cap’ | Greenwood Gardens | IRRC04 | evg | |||
| ‘Iceberg’ | Aus. & NZ | Galle85 | evg | |||
| ‘Iceberg’ | Deerfield | Galle85 | evg | |||
| ‘Iceland’ | Deerfield | Galle85 | evg | |||
|
‘Ichibanboshi’ | Satsuki | SatDict97 | evg | ||
| ‘Ichifuju’ | Satsuki | SatDict97 | evg | |||
| ‘Ichimonji’ | Satsuki | IRRC04 | evg | |||
| ‘Ichiyo’ | Satsuki | IRRC04 | evg | |||
| ‘Ida’ | Ferndown | Galle85 | evg | |||
| ‘Ida’ | Indian | IRRC04 | evg | |||
| ‘Ida’ | Kurume | IRRC04 | evg | |||
| ‘Ida Harmon’ | Eden | Galle87Azalean Jan, | evg | Pink-Dark | Midseason | |
| ‘Ida Marmion’ | Hines | IRRC04 | evg | |||
| ‘Ideal’ | Belgian Indian | Galle85 | evg | |||
| ‘Ididit No. 1’ | Delp | IRRC04 | azd | |||
| ‘Ignescens’ | Unknown | IRRC04 | dec | |||
| ‘Ignescens’ | Indian | IRRC04 | evg | |||
| ‘Igneum’ | Ghent | IRRC04 | dec | |||
|
‘Igneum Novum’
('Ignacea', 'Ignaceum', 'Ignaea', 'Ignoea Nova', 'Ignea Nova', 'Iqnoea Nova') |
Ghent | IRRC04 | dec | |||
|
‘Ikoi-no-tomo’
('Ikoi no Tomo') |
Satsuki | IRRC04 | evg | |||
| ‘Ikoma’ | Satsuki | Galle85 | evg | |||
| ‘Ikon’ | Motzkau | IRRC04 | evg | |||
| ‘Il Tasso’ | Rustica | Galle85 | dec | |||
| ‘Ilam Apricot’ | Unknown | IRRC04 | dec | |||
|
‘Ilam Cardinal’
('Cardinal', 'Ilam No. 5') |
Ilam | Galle85 | dec | |||
| ‘Ilam Carmen’ | Ilam | Galle87 | dec | |||
| ‘Ilam Center’ | Ilam | Galle85 | dec | |||
| ‘Ilam Centre Bush’ | Unknown | IRRC04 | dec | |||
| ‘Ilam Cerise’ | Unknown | IRRC04 | dec | |||
|
‘Ilam Chartreuse’
('Chartreuse') |
Ilam | Galle87 | dec | |||
|
‘Ilam Copper Cloud’
('Copper Cloud') |
Ilam | Galle87 | dec | |||
| ‘Ilam Cream’ | Unknown | IRRC04 | dec | |||
| ‘Ilam Galaxy Appleblossom’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Aquarius’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Capricorn’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Cascade’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Celeste’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Corona’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Dawn’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Firestorm’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Gemini’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Gold Dust’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Libra’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Mars’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Orion’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Pegasus’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Radiance’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Stardust’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Sunburst’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Sunlight’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Sunrise’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Surprise’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Taurus’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Venus’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Virgo’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Galaxy Volcano’ | Canterbury | IRRC04 | dec | |||
| ‘Ilam Glory’ | Canterbury | IRRC04 | dec | |||
|
‘Ilam Jasper’
('Jasper') |
Ilam | Galle87 | dec | |||
|
‘Ilam Louie Williams’
('Louie Williams') |
Ilam | Galle87 | dec | |||
|
‘Ilam Martie’
('Martie') |
Ilam | Galle87 | dec | |||
|
‘Ilam Melford Beauty’
('Melford Beauty') |
Ilam | Galle87 | dec | |||
|
‘Ilam Melford Flame’
('Melford Flame') |
Ilam | Galle87 | dec | |||
|
‘Ilam Melford Gold’
('Melford Gold') |
Ilam | Galle87 | dec | |||
|
‘Ilam Melford Lemon’
('Melford Lemon') |
Ilam | Galle87 | dec | |||
|
‘Ilam Melford Red’
('Melford Red') |
Ilam | Galle87 | dec | |||
|
‘Ilam Melford Salmon’
('Melford Salmon') |
Ilam | Galle87 | dec | |||
|
‘Ilam Melford Yellow’
('Melford Yellow') |
Ilam | Galle87 | dec | |||
|
‘Ilam Ming’
('Ming') |
Ilam | Galle87 | dec | |||
| ‘Ilam Orange’ | Unknown | IRRC04 | dec | |||
|
‘Ilam Peachy Keen’
('Peachy Keen') |
Ilam | Galle87 | dec | |||
|
‘Ilam Persian Melon’
('Persian Melon') |
Ilam | Galle87 | dec | |||
|
‘Ilam Persian Rose’
('Persian Rose') |
Ilam | Galle87 | dec | |||
| ‘Ilam Pink’ | Unknown | IRRC04 | dec | |||
|
‘Ilam Pink Williams’
('Louis Williams', 'Pink Williams') |
Ilam | Galle87 | dec | |||
|
‘Ilam Primrose’
('Primrose') |
Ilam | Galle87 | dec | |||
| ‘Ilam Red’ | Unknown | IRRC04 | dec | |||
|
‘Ilam Red Ball’
('Melford Red Ball') |
Ilam | Galle87 | dec | |||
|
‘Ilam Red Frills’
('Red Frills') |
Ilam | Galle87 | dec | |||
|
‘Ilam Red Gem’
('Red Gem') |
Ilam | Galle87 | dec | |||
|
‘Ilam Red Giant’
('Melford Red Giant', 'Red Giant') |
Ilam | Galle87 | dec | |||
|
‘Ilam Red Glow’
('Red Glow') |
Ilam | IRRC04 | dec | |||
|
‘Ilam Red Velvet’
('Red Velvet') |
Ilam | Galle87 | dec | |||
| ‘Ilam Tangerine’ | Unknown | IRRC04 | dec | |||
| ‘Ilam White’ | Unknown | IRRC04 | dec | |||
| ‘Ilam Yellow’ | Unknown | IRRC04 | dec | |||
|
‘Ilam Yellow Beauty’
('Melford Yellow Beauty', 'Yellow Beauty') |
Ilam | Galle87 | dec | |||
|
‘Ilam Yellow Giant’
('Melford Yellow Giant', 'Yellow Giant') |
Ilam | Galle87 | dec | |||
| ‘Ilario’ | Streck | IRRC04 | evg | |||
|
‘Illuminator’
('Illuminata') |
Amoena | IRRC04 | evg | |||
|
‘Illusion’ | Glenn Dale | Galle85 | evg | ||
| ‘Illustration’ | Indian | IRRC04 | evg | |||
| ‘Illustre’ | Unknown | IRRC04 | evg | |||
| ‘Illustre’ | Indian | IRRC04 | evg | |||
| ‘Illustre’ | Kurume | Galle85 | evg | |||
| ‘Illustre Novum’ | Indian | IRRC04 | evg | |||
| Cultivar | Group | Ref | Type | Color | Bloom Time |