Jim Carter wrote in message . ..
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.

Tomatoes are particularly sensitive to cold soil. The plants will
still be good, but you won't see tomatoes until september. What you
can do is lay plastic (clear or black) on the bed for a month before
transplanting.