This is a great web site for knowing what to plant when in your particular "neck of the woods".
Would you like to know how I found it :)? Well, I recently read a book called Made from Scratch, and while reading discovered that the author ( a mere youngster!) had once lived in our previous corner of the planet! I have had a great time reading her blog. You can read an excerpt of it here, on Mother Earth News:
Anyway, one click lead to another and I thought the "what to plant when" info. was very helpful!