I have an iris bed
that I have just cleaned up and weeded nicely. Is there a good way to keep
the weeds out, I know not to cover the plants too much, so how can I mulch
to keep it neat.

Irises do not take kindly to too much mulching. I would recommend Preen n'
Green, or the same thing sold under other brand names.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)