On Sun, 09 Feb 2003 15:45:07 -0500, Jim Carter
wrote:

Our last frost date is May 24. Does this mean that tomatoes may be planted at
this time even though the soil is still cool?I would, of course, have hardened
off the plants prior to this.

"Several weeks" after last frost date is recommended. A last frost of
May 24 is pretty cool (temperature-wise, not 'groovy'). I can never
remember whether it's Johnny's or Pinetree seeds that specializes in
short-season varieties.

Here's an interesting chart I came across:

http://www.naturalgardening.com/shop/frostdatesa-n.php3