| Name? | Group? | Type? | Source? | Images? |
| 'Shiraito-no-taki' | Satsuki | evg |
Galle85 |
| 'Shiraito-no-tsuki' | Satsuki | evg |
Galle85 |
| 'Shirasagi' | Satsuki | evg |
SatDict83 |
| 'Shirasumi' | Satsuki | evg |
Galle85 |
| 'Shirataki' | Kurume | evg |
Galle85 |
| 'Shiraume' | Satsuki | evg |
SatDict97 |
| 'Shirayukihime' | Satsuki | evg |
SatDict97 |
| 'Shiroebisu' | Satsuki | evg |
SatDict97 |
| 'Shirogane' | Hirado | evg |
Galle85 |
| 'Shirokozan' | Satsuki | evg |
SatDict83 |
| 'Shiro Manyo' see 'Narcissiflorum' | Mucronatum | evg |
Galle85 |
| 'Shiro-manyo Tsutsuji' see narcissiflorum | Mucronatum | evg |
Galle85 |
| 'Shirorizuki' ('Gekkyuden') | Satsuki | evg |
IRRC04 |
| 'Shiro Ryuku' | Mucronatum | evg |
Galle85 |
| 'Shiro Satsuki' | Indicum | evg |
Galle85 |
| 'Shirotae' (pulchrum var. shirotae) | | evg |
Galle85 |
| 'Shiro-unzen' ('Kogome-tsutsuji') | | evg |
IRRC04 |
| 'Shiryu-no-homare' | Satsuki | evg |
SatDict97 |
| 'Shiryu-no-mai' | Satsuki | evg |
Galle85 |
| 'Shishinden' | Satsuki | evg |
SatDict97 |
| 'Shishin Nishiki' | Satsuki | evg |
Galle85 |
| 'Shishoren' | Mucronatum | evg |
Galle85 |
| 'Shishu' | Mucronatum | evg |
Galle85 |
| 'Shisui' | Satsuki | evg |
Galle85 |
| 'Shisuikan' | Satsuki | evg |
SatDict97 |
| 'Shium' | Wada | evg |
Galle85 |
| 'Shiun-no-tsuki' | Satsuki | evg |
SatDict97 |
| 'Shizanko' | Poukhanense | evg |
RSF81 |
| 'Shizuka'1 | Satsuki | evg |
SatDict97 |
| 'Shizuka'2 | Satsuki | evg |
SatDict97 |
| 'Shizunomai' | Kurume | evg |
Galle85 |
| 'Shjuchuke' (sp?) | Kurume | evg |
Galle85 |
| 'Shochikubai' | Satsuki | evg |
SatDict97 |
| 'Shocking Pink' | Beltsville | evg |
Galle85 |
| 'Shocking Pink' | Holmes | evg |
Galle85 |
| 'Shogetsu' | Kiusianum | evg |
Galle85 |
| 'Shogetsu' | Satsuki | evg |
Galle85 |
| 'Shoi Pink' | Kiusianum | evg |
Galle85 |
| 'Shoji Kuruma' | Satsuki | evg |
Galle85 |
| 'Shojyo' | Kurume | evg |
Galle85 |
| 'Shoka' | Satsuki | evg |
Galle85 |
| 'Shokka Nishiki' | Satsuki | evg |
Galle85 |
| 'Shokkonishiki' | Satsuki | evg |
SatDict97 |
| 'Shonan-no-hoshi' | Satsuki | evg |
SatDict97 |
| 'Shoqua' | Satsuki | evg |
Galle85 |
| 'Short Circuit' | | evg |
Steele03 |
| 'Shosai' | Satsuki | evg |
SatDict97 |
| 'Shoshi-no-hana' | Satsuki | evg | Galle85 | b |
| 'Shoshobeni' (sp?) ('Shosohobeni') | Kurume | evg |
Galle85 |
| 'Shosohobeni' see 'Shoshobeni' (sp?) | Kurume | evg |
Galle85 |
| 'Shoten-no-ryu' | Satsuki | evg |
SatDict97 |
| 'Showanishiki' | Satsuki | evg |
SatDict97 |
| 'Showa-no-homare' | Satsuki | evg |
Galle85 |
| 'Showa-no-kagayaki' | Satsuki | evg |
Galle85 |
| 'Showa-no-mai' | Satsuki | evg |
SatDict97 |
| 'Showboat' see 'Greenwood Showboat' | Greenwood | evg |
Galle87 |
| 'Show Glory' see 'Madame Auguste Van Damme' | Aus. & NZ | evg |
Galle85 |
| 'Show Time' | Greenwood | evg |
Galle85 |
| 'Shozui' | Satsuki | evg |
Galle85 |
| Shrine Azalea see sanctum | Species | dec |
Galle85 |
| 'Shuchuka' | Satsuki | evg |
Galle85 |
| 'Shugetsu' ('Shyughetsu') | Satsuki | evg |
Galle85 |
| 'Shuho' | Satsuki | evg |
SatDict97 |
| 'Shuho-no-hikari' | Satsuki | evg |
Galle85 |
| 'Shuki-no-tsuki' | Satsuki | evg |
SatDict97 |
| 'Shuko-no-tsuki' | Satsuki | evg |
Galle85 |
| 'Shukubai' | Satsuki | evg |
Galle85 |
| 'Shukufuku' | Satsuki | evg |
Galle85 |
| 'Shukuju-no-mai' | Satsuki | evg |
SatDict97 |
| 'Shumpow' see 'Shunpo' | Satsuki | evg |
Galle85 |
| 'Shungetsu' | Satsuki | evg |
Galle85 |
| 'Shungyo' | Satsuki | evg |
SatDict97 |
| 'Shunka' | Satsuki | evg |
SatDict97 |
| 'Shunko-no-mai' | Satsuki | evg |
SatDict97 |
| 'Shunpo' ('Shumpow') | Satsuki | evg |
Galle85 |
| 'Shunrai' | Satsuki | evg |
SatDict97 |
| 'Shunraku' ('Syunraku') | Satsuki | evg |
Galle85 |
| 'Shunrei' | Satsuki | evg |
Galle85 |
| 'Shunsui'1 | Satsuki | evg |
SatDict97 |
| 'Shunsui'2 | Satsuki | evg |
SatDict97 |
| 'Shunto' | Satsuki | evg |
SatDict97 |
| 'Shunyo' | Satsuki | evg |
SatDict97 |
| 'Shusui' | Satsuki | evg |
SatDict97 |
| 'Shy Girl' (#12) | Chinquapin Hill | dec |
Galle85 |
| 'Shyughetsu' see 'Shugetsu' | Satsuki | evg |
Galle85 |
| 'Sibelius' | Vuyk | evg |
Galle85 |
| 'Sierra Nevada' | Belgian Indian | evg |
Galle85 |
| 'Sierra Snow' | Belgian Indian | evg |
Galle85 |
| 'Sigismund Rucker' | Aus. & NZ | evg |
Galle85 |
| 'Sigismund Rucker' | Belgian Indian | evg |
Galle85 |
| 'Signal' | Glenn Dale | evg | Galle85 | b |
| 'Signal Light' | Puyallup Valley | dec |
Galle85 |
| 'Siho' | Satsuki | evg |
Galle85 |
| sikayotaizanense | Species | evg |
Galle85 |
| 'Sikorsky' | Kaempferi | evg |
Galle85 |
| 'Silbersee' | Kaempferi | evg |
Galle85 |
| 'Siletz' | Slonecker | dec |
Galle85 |
| 'Si-lin' | Greenwood | evg |
Galle85 |
| 'Silver Anniversary' | Aus. & NZ | evg |
Galle85 |
| 'Silver Bay' (no page number given) | | unk |
Galle87 |
| 'Silver Cup' | Glenn Dale | evg | Galle85 | b |
| 'Silver Frills' | Aus. & NZ | evg |
Galle85 |
| 'Silver Glow' | Aus. & NZ | evg |
Galle85 |
| 'Silver Glow' | Belgian Indian | evg |
Galle85 |
| 'Silver Jubilee' | Aus. & NZ | evg |
Galle85 |
| 'Silver King' | Aus. & NZ | evg |
Galle85 |
| 'Silver Knight' | Aus. & NZ | evg |
Galle85 |
| 'Silver Lace' | Glenn Dale | evg | Galle85 | b |
| 'Silver Mist' | Glenn Dale | evg | Galle85 | b |
| 'Silver Moon' | Glenn Dale | evg | Galle85 | b |
| 'Silver Prince' | Aus. & NZ | evg |
Galle85 |
| 'Silver Slipper' ('Silver Slippers') | Exbury | dec |
Galle85 |
| 'Silver Slippers' see 'Silver Slipper' | Exbury | dec |
Greer77 |
| 'Silver Star' | Greenwood | evg |
Galle85 |
| 'Silver Streak' | Greenwood | evg |
Galle85 |
| 'Silver Sword' | Girard | evg |
Roslyn04 |
| 'Silver Sword' | Kaempferi | evg |
Galle85 |
| 'Silver Tears' | Coolidge | evg |
Galle85 |
| 'Silver Wings' | Southern Indian | evg |
Galle85 |
| 'Silvester' | Kurume | evg |
Galle85 |
| 'Silvia' see 'Blaschek' | | evg |
IRRC04 |
| 'Simon Mardner' | Belgian Indian | evg |
Galle85 |
| 'Simplet' | Belgian Indian | evg |
Galle85 |
| 'Simplet Orange' | Belgian Indian | evg |
Galle85 |
| 'Simplicity' | Glenn Dale | evg | Galle85 | b |
| Sims Azalea see simsii | Species | evg |
Galle85 |
| simsii ('Yin-shan-hung', Sims Azalea) | Species | evg |
Galle85 |
| sinensis see molle | Species | dec |
Galle85 |
| 'Sinensis Rosea' | Aus. & NZ | evg |
Galle85 |
| 'Singing Fountain' | Coolidge | evg |
Galle85 |
| 'Sing, Sing, Sing' | Carlson | dec |
Galle87 |
| 'Sinju-no-hikari' | Satsuki | evg |
SatDict83 |
| 'Sir Charles Napier' | Aus. & NZ | evg |
Galle85 |
| 'Sir J. Outram' ('General Outram') ? | Indian | evg |
IRRC04 |
| 'Sirokozan' | Satsuki | evg |
SatDict97 |
| 'Sir Robert' (T15-8) | Robin Hill | evg | Galle85 | p, b, b, t |
| 'Sir Robert's Witches Broom' | Intergroup | evg |
Galle85 |
| 'Sir William Lawrence' | Exbury | evg |
Galle85 |
| 'Siskin' | Knap Hill | dec |
Galle85 |
| 'Sister Alice' | Girard | dec |
Galle85 |
| 'Siuslaw' | Slonecker | dec |
Galle85 |
| 'Sizzler' | Hill | dec |
Galle85 |
| 'Skiki Murasaki' see yedoense var. poukhanense | Species | evg |
Galle85 |
| 'Skyblue Diamond' see 'Diamant Himmelbau' | Diamant | evg |
Galle85 |
| 'Sky Hill Rose' | Furman | evg |
Steele03 |
| 'Skylark' | Whitewater | evg |
Galle85 |
| 'Sleigh Bells' | Greenwood | evg |
Galle85 |
| 'Sleigh Bells' | Intergroup | evg |
Galle85 |
| Slender Azalea see tenue | Species | evg |
Galle85 |
| 'Sligo' | Glenn Dale | evg | Galle85 | b |
| 'Slim Jim' | Linwood Hardy | evg |
Galle85 |
| Small-flowered Azalea see minutiflorum | Species | evg |
Galle85 |
| 'S Marvelous' | Carlson | dec |
Galle87 |
| 'Smithi' (var. smithi) | Aus. & NZ | evg |
Galle85 |
| 'Smithii Aureum' ('Aureum', 'Norbitonense Aureum') | | azd |
IRRC04 |
| 'Smith Pink' | Aromi | dec | Azalean25:2 | b |
| 'Smokey Mountaineer' | | dec |
Galle85 |
| 'Smokey Pink' see 'Pink Smokey' | Pride | dec |
Transplant92 |
| 'Smoky Rose' | Towe | dec |
Galle87 |
| Smooth Azalea see arborescens | Species | dec |
Galle85 |
| 'Snow #125' | Kurume | evg |
Galle85 |
| 'Snow' | Kurume | evg |
Galle85 |
| 'Snowball'1 | Kurume | evg |
Galle85 |
| 'Snowball'2 | Kurume | evg |
Galle85 |
| 'Snowbank' see 'Cherokee White' | Rutherford | evg |
Galle85 |
| 'Snowbird' | Biltmore | dec |
Galle85 |
| 'Snowbird' | Coolidge | evg |
Galle85 |
| 'Snowclad' | Glenn Dale | evg | Galle85 | b |
| 'Snow Cloud' | Greenwood | evg |
Galle85 |
| 'Snowdrift' | Aus. & NZ | evg |
Galle85 |
| 'Snowdrift' | Mollis | dec |
Galle85 |
| 'Snowdrop' | Beltsville Dwarf | evg |
Galle85 |
| 'Snowfall' | Belgian Indian | evg |
Galle85 |
| 'Snowflake' see 'Kure-no-yuki' | Kurume | evg |
Galle85 |
| 'Snow Flurry' | Beltsville Dwarf | evg |
Galle85 |
| 'Snow Girl' | Aus. & NZ | evg |
Galle85 |
| 'Snow Hill' | Southern Indian | evg |
Galle85 |
| 'Snowhite' see 'Snowwhite' | Beltsville | evg |
Galle85 |
| 'Snow Mound' | Greenwood | evg |
Galle85 |
| 'Snow Prince' | Aus. & NZ | evg |
Galle85 |
| 'Snow Puff' | Greenwood | evg |
Galle85 |
| 'Snow Queen' ('Madame Hermann Seidel') | Aus. & NZ | evg |
Galle85 |
| 'Snow Queen' | Southern Indian | evg |
Galle85 |
| 'Snowscape' | Glenn Dale | evg | Galle85 | b |
| 'Snow Storm' | Aus. & NZ | evg |
Galle85 |
| 'Snowwhite' ('Madame Papi') | Belgian Indian | evg |
Galle85 |
| 'Snowwhite' ('Snowhite') | Beltsville | evg |
IRRC04 |
| 'Snowwhite' | Knap Hill | dec |
Galle85 |
| 'Snow Wreath' | Glenn Dale | evg | Galle85 | b |
| 'Sode-magaki' like 'Futae-zuru' | Satsuki | evg |
IRRC04 |
| 'Soft Echo' | | dec |
Roslyn95 |
| 'Soft Lips' | Exbury | dec |
Galle85 |
| 'Soft Shimmer' | Greer | dec |
Greer04 |
| 'Sofu' | Satsuki | evg |
SatDict97 |
| 'Sofuren' | Satsuki | evg |
SatDict97 |
| 'Sogen-no-tsuki' | Satsuki | evg |
SatDict97 |
| 'Sogon Nishiki' | Satsuki | evg |
Galle85 |
| 'Soho' ('Sohow') | Satsuki | evg |
Galle85 |
| 'Sohow' see 'Soho' | Satsuki | evg |
Galle85 |
| 'Soir de Paris' | Felix & Dijkhuis | dec |
Galle87 |
| 'Soko' | Satsuki | evg |
SatDict97 |
| 'Solace' | Aromi | evg |
Azalean25:2 |
| 'Soleil d'Or' | Ghent | dec |
Galle87 |
| 'Solitaire' | Belgian Indian | evg |
Galle85 |
| 'Solitaire' | Whitewater | evg |
Galle85 |
| 'Solstice' | Satsuki | evg |
Galle85 |
| 'Somemoyo' | Satsuki | evg |
SatDict97 |
| 'Somerset' | Eden | evg |
Galle85 |
| 'Sonata' | Glenn Dale | evg | Galle85 | b |
| 'Sonia' | Exbury | dec |
Galle85 |
| 'Son of a Gun' | Hager | evg |
Galle85 |
| 'Sonoma Dwarf Pink' ('Pink Sonoma Dwarf') | Sonoma Dwarf | evg |
Galle85 |
| 'Sonoma Dwarf Pink Plicata' ('Pink Plicata Sonoma Dwarf') | Sonoma Dwarf | evg |
Galle85 |
| 'Sonoma Dwarf Red' | Sonoma Dwarf | evg |
Galle85 |
| 'Sonoma Dwarf Red Plicata' | Sonoma Dwarf | evg |
Galle85 |
| 'Sonoma Dwarf Rose Bengal' | Sonoma Dwarf | evg | Galle85 | b |
| 'Sonoma Dwarf Rose Plicata' | Sonoma Dwarf | evg |
Galle85 |
| 'Sonoma Dwarf Scarlet Plicata' | Sonoma Dwarf | evg |
Galle85 |
| 'Sonoma Dwarf Vermillion' | Sonoma Dwarf | evg |
Galle85 |
| 'Sonoma Dwarf White' | Sonoma Dwarf | evg |
Galle85 |
| 'Sonoma Sunset' | Aromi | evg |
Azalean25:2 |
| 'Sonoma Sunset' | Sonoma | evg |
Galle85 |
| 'Sono-no-homare' | Satsuki | evg |
Galle85 |
| 'Sophia' | Aromi | evg | Azalean25:2 | b |
| 'Sophisticated' | Aus. & NZ | evg |
Galle85 |
| 'Sophisticated Lady' | Carlson | dec |
Galle87 |
| 'Soquee River' see 'Dawn at the River' | Calendulaceum | dec |
ASAC01 |
| 'Sorai' | Kurume | evg |
Galle85 |
| 'Sorcerer' | Glenn Dale | evg | Galle85 | b |
| 'Sorpe' | Arendsii | evg |
Galle85 |
| 'Sorrento' | Aus. & NZ | evg |
Galle85 |
| 'Southern Aurora' ('Evonne') | Aus. & NZ | evg |
Galle85 |
| 'Southern Beauty' see 'Conlej' | Encore | evg |
IRRC04 |
| 'Southern Belle' | Southern Indian | evg |
Galle85 |
| 'Southern Blush' see 'Conlek' | Encore | evg |
IRRC04 |
| 'Southern Charm' | Southern Indian | evg |
Galle85 |
| 'Southern Charm Variegated' | Southern Indian | evg |
Galle85 |
| 'Southern Flame' see 'Conleg' | Encore | evg |
IRRC04 |
| 'Southern Glory' see 'Conlei' | Encore | evg |
IRRC04 |