@CarolineScott--I have only had luck with primed seed. Nothing else has germinated for me. This year, it took my 3 tries before I finally got primed seed to germinate. It's been almost 4 weeks now (I had about 75% germination after 14-21 days), but I still am occasionally having a sprout pop up.
Thanks for reporting your results with us! Interesting to see how the various germination methods have worked.