Kool thanks alot. I didnt know they fall off the plant when ready. I;ll be looking for them since i have it oudoors next to my tomatoes.It takes some 6 weeks from pollination for seeds to fully develop.
5 weeks from pollination I usually put some papers on the ground and soil in order to gather all the mature seeds that fall off. 2 weeks later I simply pick the remaining seeds, the ones that didn't fall off stright from the bud.