solanum album pruning

hello chaps
I have a nicely established solanum album covering a wall on my terrace which gets rather out of hand if left to its own devices. I pruned it hard back in early spring. This summer it produced far fewer blooms than in previous years and i wondered if the two are related. Does anyone have any advice about the best time to prune it without either jeopardising the plant itself or the number of blooms it might produce?
many thanks
lynne

 

This is what crocus say:
http://www.crocus.co.uk/Catalog/GardenPlants/?ContentType=Plant_Card&ClassID=1722
Sounds as if you pruned a lot of the flowering side-shoots off.
Does it live up to it's write-up?

 

Liz, hi, thanks for the link.
if mine smells of jasmine then i can't smell it!
i thinki was probably rather too enthusiastic with my pruning!
I shall cut it back in winter this time taking care to not be so vicious!
It is a lovely climber though!