I just found this wonderful planting calculator that tells you based on frost dates when you should be: planting, starting, hardening off and transplanting all of your plants. Not that it's THAT hard to make your own calender but why not have someone else do it for you :) I have also thrown together a list of vegetable plants that can be planted outside before last frost. If you can't tell, I'm getting to be an anxious gardener with all of the nice weather and would love to start putting some things outside other than my peas and lettuce.
Here is what you can plant before last frost, once the ground is workable:
Rose Mallow/Tree Mallow
Bells of Ireland
Hopefully that will help a little, I know I will end up glancing back at this list occasionally to see what I can put in the ground this early. I do have some poppys started, I wonder if I can put those in now? I guess I will have to do some more digging.
Also my first outside bloom today was a daffodil, hopefully the tulips will start to soon.