Cilantro, Sunflowers, and veggie galore

I.love coming home from a long day at work and seeing the growth in my " table top" garden.
And the birds didnt beak up all the sunflowers I planted outside and a few are starting to pop out!
My cilantro is growing slowly, cucumbers are sprouting, country mix flowers popping up, tomatoes right on time and growing their second leaves, green beans are trying just wish for a few more sunny days & the indoor sunflowers are growing fast. Autum and mammoth russians, i plan to plant some outdoors and give some as love gifts. As well as my raddish and lettuce that I got free from mcds are growing.
Only problem Im having is with my bell peppers, im excited for these to grow but nothing. I even pushed some dirt aside to peak but... nothing. Bad seeds? Is that possible? If they dont pop out sooner or later ill try again. Maybe.
Any tips?