Group 3, Late, Small-flowered, Tangutica Group.  White.  Single, bowl-shaped, nodding bloom form.  USDA zone 3b through 9b.  Height of 10' to 14½' (305 to 440 cm).   Rinus Zwijnenburg (1988).

4 favorite votes.  

USDA zone 2a and warmer.  

4 favorite votes.  

Group 3, Late, Small-flowered, Species.  Strong fragrance.  Single, bell-shaped, nodding, tubular bloom form.  Late summer to early autumn.  USDA zone 7b through 9b.  Height of 13' to 16' (395 to 490 cm).   Unknown (1818).

4 favorite votes.  

Early Large Flowered, Group 2.  Pink.  Small, single bloom form.  Late spring to midsummer.  USDA zone 4b through 9b.  Height of 6' to 8' (185 to 245 cm).   Walter Pennell (1953).

4 favorite votes.  

Group 3, Late Small Flowered, Tangutica Group.  Single, nodding bloom form.  Midsummer.  USDA zone 3b through 9b.  Height of 10' to 14½' (305 to 440 cm).   Unknown in China (1910).

4 favorite votes.  

Group 3, Late, Small-flowered, Species.  White.  Strong fragrance.  Single bloom form.  Late summer to early autumn.  USDA zone 6b through 9b (default).  Height of 10' to 13' (305 to 395 cm).   Unknown (1757).

4 favorite votes.  

Early Large Flowered, Group 2.  White, yellow anthers.  Medium to large, semi-double to double bloom form.  Late spring to early summer, late summer to early autumn.  USDA zone 4b through 8a.  Height of 7' to 10' (215 to 305 cm).   Susumu Arafune (1991).

4 favorite votes.  

Group 3, Large-flowered, Late.  Red.  Single bloom form.  Mid-to-late summer.  USDA zone 4b through 9b.  Height of 8' to 10' (245 to 305 cm).   Unknown.

4 favorite votes.  

USDA zone 2a and warmer.  

4 favorite votes.  

Early Large Flowered, Group 2.  Blue, silver(y) shading, lavender shading, red anthers.  Large, semi-double, ruffled edge bloom form.  Early to midsummer.  USDA zone 4a through 9a.  Height of up to 39" (up to 100 cm).   Raymond J. Evison (1998), Mogens Nyegaard Olesen (1998).

4 favorite votes.  

Early Large Flowered, Group 2.  Red, yellow anthers.  Large, semi-double, overlapping bloom form.  Late spring to late summer.  Height of up to 8' (up to 245 cm).   Minoru Hoshino (1990).

4 favorite votes.  

Alpina Group, Atragene Group, Early Small Flowered, Group 1.  Rose-red, darker veining.  Bell-shaped, nodding bloom form.  Late spring.  USDA zone 3b through 9b.  Height of 8' to 10' (245 to 305 cm).   Barry Fretwell (1985).

4 favorite votes.  

Early Small Flowered, Group 1, Montana Group.  White.  Mild fragrance.  Single, semi-double bloom form.  Mid-to-late spring.  USDA zone 7b through 9b.  Height of 20' (610 cm).   Jacqui Williams (1995).

4 favorite votes.  

Early Small Flowered.  Blue.  Semi-double bloom form.  Early to midsummer.  USDA zone 4b through 9b.  Height of 6' to 8' (185 to 245 cm).   John Veitch (1862).

4 favorite votes.  

Early Large Flowered.  Pink, darker edges, deep pink center.  Single bloom form.  Late spring to early summer, late summer.  USDA zone 4b through 9b.  Height of 8' to 10' (245 to 305 cm).   Walter Pennell (1956).

4 favorite votes.  

Group 2, Large-flowered, Mid-season.  Violet, purple stripes.  Large, single, clusters bloom form.  Early-to-late summer.  USDA zone 2a and warmer.  Height of 6' 7" to 9' 10" (200 to 300 cm).   Szczepan Marczynski (1993).

4 favorite votes.  

Early Large Flowered.  Violet, lighter center.  Single, semi-double, overlapping, ruffled edge bloom form.  Late spring to early summer, late summer.  USDA zone 4b through 9b.  Height of 6' to 8' (185 to 245 cm).   Friedrich Manfred Westphal (1982).

4 favorite votes.  

Early Small Flowered, Group 1, Montana Group.  Pink, silver(y) edges.  Single, saucer-shaped bloom form.  Mid-to-late spring.  USDA zone 7b through 9b.  Height of 29' (885 cm).   Unknown.

4 favorite votes.  

Pink and white.  USDA zone 2a and warmer.  

4 favorite votes.  

Red, yellow anthers.  USDA zone 2a and warmer.  Height of 8' to 12' (245 to 365 cm).  

4 favorite votes.  

Group 3.  Light pink, silver(y) shading, light purple edges, yellow anthers, ages to lighter .  Medium, semi-double, twisted petals bloom form.  Late spring to midautumn.  Height of 39" to 4' 11" (100 to 150 cm).   Raymond J. Evison (2013).

4 favorite votes.  

Early Large Flowered, Group 2.  Blue, light blue streaks, light yellow anthers.  Large, single bloom form.  Early summer to early autumn.  Height of 4' 11" to 6' 7" (150 to 200 cm).   Aili Kivistik (1985), Uno Kivistik (1985).

4 favorite votes.  

Group 3.  Light pink, mauve shading.  Small, single, star-shaped bloom form.  Midsummer to midautumn.  Height of 23' (700 cm).   Barry Fretwell (2011).

4 favorite votes.  

Early Large Flowered.  Red, darker center.  Single, overlapping bloom form.  Late spring to early summer, early autumn.  USDA zone 4b through 9b.  Height of 8' to 10' (245 to 305 cm).   D.T. Poulsen (1970).

4 favorite votes.