Since cuttings using the pads is so easy that is my prefered method of propagation But since you asked. Soak the seed in acid for 1 hour then rince & store at 40F for 90 days. then lightly cover with soil...soil 70F may take 1 year to germinate

Fresh seed does not germinate easily, it's best to use seed that is a year or more old. I had good germination (about 70%) by pressing the seed into the surface of a peat-based mix, enclosing the container in a plastic bag, and growing under lights.