Oh wow! That's a LOT of semp seedlings! I can't wait to see how they develop!
I suspect that I may have tried to harvest my seed too early, so it's immature. The test pots I tried all failed. I will put what I've got left of it out just as soon as we've moved and are straight (removal men come on Wednesday, yikes!) but I'm not too hopeful of the results. Next summer I'll know what to do differently!!!