We are waiting on the warm weather crops. If you put them in too soon, it can stunt their growth even if there is no frost. Happened to us one year...squash plants just sat there looking small and insignificant. So, we had to replant direct in the ground from seed, and they went way past the first ones in size and production. Yanked the others out to make room for the new.
That said, it is a warmer year. I'm thinking of putting the tomatoes in after this rain tonite, like maybe on Thursday.
