Several times I have tossed the remains of peppers, seeds and veins, stems, etc., into the worm compost bins and had what seemed like very seed germinate with no special care. I find them when I pull the lid off. A few times I have lifted a specimen out and potted it up and had a very nice plant. It must be the even temperature and moisture or even the dark. I have an extensive herb garden and some herbs do not germinate unless they are completely away from the light. It may be that some peppers are the same. Andie