teasel cultivation problems

[rtid]

I’m trying to grow teasel from seed. I have had real problems getting the seed to germinate, maybe only 7 out of 30 seeds. Then when they do germinate they are reaching about ¾ inch long and then keel over and once they have hit the soil that seems to be the end of them despite any efforts to revive them

Any suggestions where I’m going wrong.

Each seed is in a small section of a seedling tray in seed soil, I have not over watered them