I just found this online planting calendar where you can plug-in the date of your last frost and it tells you the best dates to sow and plant seeds. This really takes the guessing out of it!
That sounds great for gardeners in different areas. We have used the on-line calendar from the University of Minnesota, Extension department, just 50 miles from here and it has worked out well. They even have dates for when to start seeds indoors. Its great to have a guide rather than the guess and hope method. Susan
"Tell me, what is it you plan to do with your one wild and precious life?" Mary Oliver