Despite being perennial, these plants aren't entirely hardy - they will survive in a warm, sheltered spot that isn't wet in winter, but if the temperature drops below -5 deg C in winter for any length of time, they'll probably die anyway.

It may be that you cut them too early, probably best left as they were till end of April - if they're still alive, they will probably recover. If you want more, I've not seen these at the garden centre, but they are available online - google produces a few places selling them. I think I'll be getting some too, not tried this yet...

Every evening when I went to shut the ducks the perfume was wonderful, They are worth getting. We were lucky enough to have a mild winter but perhaps it would be worth taking them in to the cold greenhouse for the winter? Thanks for the advice

Hi Telme, I take cuttings through the summer and they root ok with a little bottom heat. I find they do shoot again from the bottom of the older stems. I trim them back in May usually.
with it being so mild this year there has been the odd flower all through the winter.

I can't wait to get some - I have a balcony right outside my sitting room window/doorway, imagine that on a balmy evening, it'll be coming into the room I hope. But will I remember the name...

there is also an annual one too. looks and smells the same. I prefer it to night scented stock.