[mrs bouquet]

Some of my ferns are beginning to look like little tree ferns.  As I have cut them back each year, I am now noticing that the fronds are starting about 6 inches up the brown base.   Should I just leave them and enjoy them as they are, or should I dig them up, and replant in the same holes up to where the fronts start.   It will have to be a very big holes  !!  With wonderful hindsight, I realise I should have done this years ago, and maybe have divided them.    What do you think ?    Mrs Bouquet