williamsianum hybrid 'Gartendirektor Glocker'

Parentage: (arboreum x unknown) 'Doncaster' x williamsianum, cross by D. Hobbie, 1952.
Habit: Compact growth. Tolerates sun. Height 0.9 m in ten years.
Flowers: Deep reddish rose, edges darker, dark red spottings. Flower size 7 cm.
Leaves: Glossy dark green, stiff leaves.
Cold Hardiness: -4°F, -20°C