Ive read you should allow 6 weeks after flowering Eric. By that stage they are still green though.
Ive also read that you should not tie them so they look neat.
Like you, I wait until they die back. They are untidy in habit, but we have to balance that against the cheer they give when they put on such a welcome display in early spring.
Like you, I'd like to hear from other members.
BBQ Summer? Promised? mmm
Cant complain too much though. We need a wee rest now and again, and the rain is very welcome after a blistering hot week.
Mind you, its only welcome for a day or so at a time with a period of sunny days between

I was out in the greenhouse this evening potting on some plants (we had a heavy shower around 6pm) and it was actually very COLD!