Lowest temperature: <-20°C
| Name | Flowers | Lowest Temp. | Height after 10 years | 20 Litre | 30 Litre | 45 Litre | 85 Litre | |
|---|---|---|---|---|---|---|---|---|
| Large Hybrid | ||||||||
| Christmas Cheer | Pink | Feb/Mar | <-20°C | 1.2m |  | | ||
| Concorde | Mauve | May/Jun | <-20°C | 1.5m | | |||
| Cunningham's White | White | May/Jun | <-20°C | 1.2m | | | ||
| Delta | Pink | May/Jun | <-20°C | 1.75m | | | ||
| Fastuosum Flore Pleno | Mauve | May/Jun | <-20°C | 1.8m | | |||
| Gomer Waterer | White | May/Jun | <-20°C | 1.8m | | |||
| Maharani | Pink | May/Jun | <-20°C | 1.4m | | | ||
| Mrs T Lowinsky | Mauve | Jun/Jul | <-20°C | 1.5m | | |||
| Nicoline | Red | May/Jun | <-20°C | 1.2m | | |||
| Nova Zembla | Red | May/Jun | <-20°C | 1.5m | | |||
| Rasputin | Purple | May/Jun | <-20°C | 1.3m | | |||
| Robert Korn | White | May/Jun | <-20°C | 1.5m | | | ||
| Rocket | Pink | Apr/May | <-20°C | 1.5m | | |||
| Simona | Pink | May/Jun | <-20°C | 1.4m | | | ||
| Yakushimanum/Compact | ||||||||
| Crete | White | May/Jun | <-20°C | 1.2m | | |||
| Fantastica | Red | May/Jun | <-20°C | 0.9m | | |||
| Sleepy | Mauve | May/Jun | <-20°C | 0.9m | | |||
| Deciduous Azalea | ||||||||
| Rennie | Red | May/Jun | <-20°C | 1.5m | | |||
| Silver Slipper | White | May/Jun | <-20°C | 1.8m | | |||
| Strawberry Ice | Pink | May/Jun | <-20°C | 2.1m | | |||
| Vinecourt Duke | Pink | May/Jun | <-20°C | 1.5m | | |||
