I have bitten the bullet and dived into the overgrown corners of my garden
and started turfing out the spanish bluebells, where I also found clumps of
Crocosmia which were very congested and hardly flowering at all. After
digging up the clumps I find that the oldest ones have 17 corms stacked one
on top of the other. Presuming these are laid down annually that's 17
summers without clumps being touched! No wonder they didn't flower well.

The books recommend no more than three years betwen dividing clumps.
I've knocked off the excess corms and replanted but I imagine that I'll not
get a display this year, it being rather late to do this kind of thing.

Andy.