I just dump the compost in, around and amongst them...even over is ok..

So it won't hurt the ones that haven't sprouted yet, to be under all that extra dirt/compost?

Just don't cover those mounts that haven't sprouted yet, let them get a good start first. Enjoy what we can't down this way. Asparagus grows wild up your way so once it is started you should really be able to enjoy your fruits. I never bothered with all that mounding etc. Just planted them along my fence in Colorado and they did fine.

Thanks Wally.

you really do not have to worry about filling in your trench real quick, you probably can wait until the slower ones arrive,,,the ferns will grow taller and can be filled in accordingly,,,
Right on, sounds like you have the crowns established quite deep, if it is practical just add to the ones you can see now, I think you are right about covering the slower ones too deep, no sense making it any harder for them,,, in a few years when they are established nothing will stop those spears.(well almost) best of luck with your new ferns

Thanks thefarmguy!