Posted: 18/03/2014 at 10:02
The only silly question is the one you did not ask when you could have done.
The leaves on Spring bulbs are now feeding the bulb for next season so you should leave them alone. They will eventually with away and once they are dead, then you may remove them. It is usually recommended that you snip off any seed heads/dead flowers to save the plant from wasting energy.
Primula leaves last a lot longer, but same again, the plant needs them to feed itself.
Most of our Spring bulbs grow up through other plants, so as long as you are careful not to damage the bulbs when planting, then yes you can have other things in the same space.