Has anyone had any success with keeping an unusual aquilegia going for more than a couple of years? We used to have a superb one, small flowers, soft scarlet, with a gold edge to each petal. It has now disappeared.

This year a most unusual double one has turned up, the outer petals an almost iridescent mauve, the inner ones a pale lilac. I have not the slightest idea which of the many hundreds of aquilegia in the garden are the parents, so was wondering if there was any way to bulk it up and perhaps eventually split it.