First seed showed no signs of change after 3 days, so I added two more seeds to hedge my bets. Based on this article, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7952943/ , I spritzed them with a dilute H2O2 solution I had handy for gnats. The next day, one of the seeds, and I'm fairly sure it was one of the new ones, had sprouted. After another day the sprout was at least 2cm, so I planted it in a 5gal bag already prepared with 55g of GrowDots distributed throughout, mycorrhizae, turbinado sugar for the mycorrhizae, nematodes, and some CalMag.
I swapped to a new paper towel and wet it entirely with the H2O2 solution to see if the other seeds ever sprout.
23-Sep
The planted seed has already popped up. There's a bit of a race to see if I can finish the Blueberry in the tent before this one needs to go in. I'll also have to figure out a plan for drying. I would have dried in the tent, but I won't have time. The unsprouted seeds are still unsprouted. I think I'm currently at 3/7 successfully germinated from that batch of seeds. Fortunately, I think it was a buy 10, get 10 free sale, so I'm not too bothered by it.