Bluebells- do you have to leave the leaves to wilt and collapse like daffs, post flowering?

[miljee]

My front (rented) garden has a host of bluebells which look good in April but I now have a sea of greenery with seed heads poking up through. Can I cut them back (leaves, seed-heads or both?) or will it prevent good flowering next year?

woops, are you meant to leave daff leaves?

Had a bit of a session with the Dutch hoe and the daffodil leaves this morning....

um, yes, technically you're supposed to dead head daffs to stop them putting their energy into seed production, then just leave them- you're not even supposed to tie them in a knot as that reduces the photosynthesis or somesuch! However, I get fed up with their ugly, sliming, yellowy-brown leaves by June so tend to clear them all then!