Joe, the "wait until the ferns all turn yellow" could be in the next century! We cut ours back at about the same time you did. Some were dead and pulled out easily, others we cut whether they were just turning yellow or still were fairly green.
Gardening is a constant learning process. If what doesn't work one year, try something else. If it does work, stick with it! I think you are going to have success with some of your garden this year, and perhaps a failure or two. Don't worry--there are so many variables like weather, variety of vegetable, spacing--you will learn, and while you are learning you will enjoy your garden and eating fresh home-grown vegetables!
Thanks for the info. I already have asparagus sprouting up since I cut the ferns so I think I may be in good shape. You mentioned having a lot of volunteer tomato plants. I'm not sure what is the best thing to do with all of the dead plants. Do I leave them be and they grow back or do I need to till them? Sorry if that's a silly question but like I said I am new to all of this. Thanks again!