I wouldn't try to sow it by myself but give the seed to someone more professional who is experienced in sowing slippers. Of course it has to be someone to trust...
There is some good once.
Dont label it correct
Make it longifolium Hybrid and let the capsule get dry.
I can give you a good lab with a good price.
I would recommend that.
I jsut send a capule there, and called it phrag hybrid 1.2
So it is only interesting for me