A sphaerocarpium (cold group) rubella (x flava) variety.
 
Cultivar Name: Lilac 1
Hybridizer:
Hans-Georg Preissel
Name Status: Established but not accepted
Publication: Kirchner-Abel et al. (2004)
Flower Color: Lilac/Purple
Flower Form: Single
 
Possibly established from:
 
Cultivar Name: Lilac
Hybridizer:
Hans-Georg Preissel
Breeding History Set: rubella
Name Status: Established and Accepted
Publication: Preissel (1994)
Pod Parent: 'Engelsglockchen'
Pollen Parent: 'B. sanguinea (red/yellow)'
Species Group Cold
Flower Color: Lilac/Purple
Flower Form: Single