It has to be the seeds.

I don't know why I'm having such trouble growing things from seed this year. My second round of thyme, dill, zinnias (which any idiot can grow), forget-me-nots and California poppies have failed again! The only thing that's showing healthy growth are my Cosmos, the seeds from which I got as a freebie in some junk mail offer to join a gardening club. AM-SO-FRUSTRATED!!!