Starts in the dirt - is it too early?

I started the following:

1/23/12 tomatoes, green peppers and basil (for Naknek greenhouse), milk thistle, lemon balm, cilantro,
2/24/12 leeks, more tomatoes and basil (for Naknek)

I've already started transplanting the tomatoes that I started in January. They are about 3-4 inches tall.

I planted the leeks in a mixture of mostly worm casings. I haven't seen any sign of them sprouting yet. I've been having difficulty getting Pro-Mix locally. The only local grower who carries it was sick when I tried to buy some more last week. I haven't heard from her since, but I hope that I can get more soon. I did send for some Cocolife blocks from Burpee's but it might take a while for that to arrive.