I think we have it. Hooray! I did plant a huckleberry on my lotti last year. in the Autumn I was told it was a 'deadly nightshade'. I thought perhaps the huckleberry had died and the NS had invaded. Did lots of research but could not come to a definite conclusion as the berries were very similar. I may have planted a seedling in my garden. (I am a very disorganised gardener!) Not sure if I shall dig it up as I still have a seed of doubt(excuse the pun).
Thanks to all.