Posted: 13/09/2013 at 20:09
I don't think they enjoy being moved - in my RHS book it says pot on only if absolutely necessary!
I have one planted in my garden (they like a warm and sheltered site) that I was given. It took 3 years before it flowered and then it only had 1 flower stem. This year it had 3 but it has taken its time!
I gave a piece to a friend (as my clump is quite big) and 2 years later hers hasn't flowered yet but luckily mine has kept flowering.