Group 2, Viticella Group.  Lilac - blue, yellow anthers.  Moderate fragrance.  Very large, single bloom form.  Late spring to early summer.  USDA zone 6a and warmer.  
Height: 4'11" to 6'7" (150 to 200cm).   Raymond J. Evison (1998), Mogens Nyegaard Olesen (1998).

6 favorite votes.  

Atragene Group, Early Small Flowered, Group 1, Species.  Brown, red shading.  Single, bell-shaped bloom form.  Late spring to midsummer.  USDA zone 4b through 9b.  Height of up to 13' (up to 395 cm).   Unknown (1840).

6 favorite votes.  

Early Large Flowered, Group 2.  Purple.  Single bloom form.  USDA zone 4b through 9b.  Height of 8' to 10' (245 to 305 cm).   Raymond J. Evison (1997), Mogens Nyegaard Olesen (1997).

6 favorite votes.  

Late, Species.  White.  Strong fragrance.  Single, curved tip bloom form.  Late summer to midautumn.  USDA zone 4b through 9b.  Height of 12' to 15' (365 to 455 cm).   Unknown(Nepal) (1830).

6 favorite votes.  

Herbaceous Group, Late, Small-flowered.  White.  Small, single, hyacinth-shaped bloom form.  Midsummer to early autumn.  USDA zone 4b through 9b.  Height of 3' to 4' (90 to 120 cm).   Unknown(Japan) (1860).

6 favorite votes.  

Group 3, Late, Small-flowered.  Cream.  Mild fragrance.  Small, bell-shaped, clusters, curved tip, nodding bloom form.  Late summer.  USDA zone 6b through 9b (default).  Height of 16' to 23' (490 to 700 cm).   Unknown in China, Unknown in India, Unknown in Kashmir.

6 favorite votes.  

Early Small Flowered, Group 1.  Lemon fragrance.  Single, clusters, semi-nodding bloom form.  Early to late spring.  USDA zone 8b through 9b.  Height of 10' to 12' (305 to 365 cm).   Unknown in New Zealand (1837).

6 favorite votes.  

Early Large Flowered, Group 2.  Mauve, cerise center.  Large, single bloom form.  Late spring to early summer, early autumn.  USDA zone 4b through 9b.  Height of 8' to 10' (245 to 305 cm).   John Treasure (1980).

6 favorite votes.  

Early Large Flowered.  Light green, light yellow stamens, ages to light pink .  Medium, double bloom form.  Late spring to midsummer.  USDA zone 2a and warmer.  Height of 4' 11" to 6' 7" (150 to 200 cm).   Robert Fortune (1860).

6 favorite votes.  

Alpina Group, Atragene Group, Early Small Flowered, Group 1.  Pink.  Single, bell-shaped, nodding bloom form.  Mid-to-late spring.  USDA zone 3b through 9b.   Raymond J. Evison (1980).

6 favorite votes.  

Early Small Flowered, Evergreen, Group 1.  White, red stripes / flecks / streaks.  Mild fragrance.  Single, nodding bloom form.  Mid-to-late autumn.  USDA zone 7b through 9b.  Height of 10' to 13' (305 to 395 cm).   Raymond J. Evison (1989).

6 favorite votes.  

Group 3, Large-flowered.  Dark purple, yellow anthers.  Medium, single bloom form.  Early summer to early autumn.  USDA zone 6a and warmer.  Height of 9' 10" to 16' 5" (300 to 500 cm).   Raymond J. Evison (1996), Mogens Nyegaard Olesen (1996).

6 favorite votes.  

Large-flowered, Late.  Blue.  Single, veined bloom form.  Mid-to-late summer.  USDA zone 3b through 9b.  Height of 6' to 8' (185 to 245 cm).   Maria F. Sharonova (1972).

6 favorite votes.  

Large-flowered, Late.  White.  Single, curved tip bloom form.  Mid-to-late summer.  USDA zone 4b through 9b.  Height of 8' to 10' (245 to 305 cm).   John Huxtable (1967).

6 favorite votes.  

Early Large Flowered.  Deep blue, lavender shading, white stamens.  Single, notched, overlapping bloom form.  Early summer to early autumn.  USDA zone 4b through 9b.  Height of 6' to 8' (185 to 245 cm).   George JACKMAN & Son (1906).

6 favorite votes.  

Atragene Group, Early Small Flowered, Group 1, Macropetala Group.  Deep blue.  Bell-shaped, nodding bloom form.  Spring.  USDA zone 3b through 9b.  Height of 6' to 10' (185 to 305 cm).   George JACKMAN & Son (1958).

6 favorite votes.  

USDA zone 2a and warmer.  

6 favorite votes.  

Group 3, Late, Small-flowered, Viticella Group.  Red or rose-pink.  Single, curved tip, grooved, semi-nodding bloom form.  Midsummer to early autumn.  USDA zone 3b through 9b.  Height of 8' to 10' (245 to 305 cm).   Marinus Koster (1890).

6 favorite votes.  

Large-flowered, Late.  Purple, red shading, lighter center.  Single bloom form.  Mid-to-late summer.  USDA zone 3b through 9b.  Height of 6' to 8' (185 to 245 cm).   Uno Kivistik (1987).

6 favorite votes.  

Early Large Flowered.  Light purple, yellow anthers.  Single bloom form.  Late spring to early summer, early autumn.  USDA zone 4b through 9b.  Height of 6' to 8' (185 to 245 cm).   George JACKMAN & Son.

6 favorite votes.  

Early Large Flowered, Group 2.  Dark red, lighter edges, cream anthers.  Medium, single bloom form.  Early summer to early autumn.  USDA zone 2a and warmer.  Height of 6' 7" to 8' 2" (200 to 250 cm).   Kozo Sugimoto (1992).

6 favorite votes.  

Early Large Flowered, Group 2.  Red to pink, dark red anthers.  Late spring to early autumn, early summer to early autumn.  USDA zone 4b through 9b.  Height of 8' to 12' (245 to 365 cm).  

6 favorite votes.  

USDA zone 2a and warmer.   Unknown (1999).

6 favorite votes.  

Early Large Flowered.  Red.  Single, curved edge, grooved, overlapping bloom form.  Late spring to early summer, late summer, mid-to-late summer.  USDA zone 4b through 9b.  Height of 8' to 10' (245 to 305 cm).  

6 favorite votes.