Large violet-blue flowers with a deep red central bar. Purple-red stamens. The hybrid is probably named after the ballet 'Kamennyi Tsvetok' by Prokofiev which translates as 'stone flower' or 'jewel flower'. Can be treated as a group 2 (tidy up only) or group 3 (hard prune). If it is hard pruned it will be at the expense of the early flowers on old wood the following year.

Group:	Early large-flowered group
Approximate height:  The heights given here are for guidance only. Much depends on the growing conditions of individual specimens.	2.5 - 3.0 metres
Flowering period(s):  Warning: the months here are approximate for the northern hemisphere: users south of the equator should add approximately 6 months so that July becomes January etc.	Jun Jul Aug Sep
Aspect:	Any aspect
Pruning:	Light prune (Group 2)
Raised by:	M A Beskaravainaja
Country of origin:	USSR/Ukraine
Date raised:  r=raised s=selected f=first flowered n=named i=introduced b=before c=about	1978
Further detail:	Flower diameter: 12-16cm Tepals: (4-) 6 (-7), overlapping