Allium Schubertii - growing from seed?

New one on me. I have sown seeds of this and other Alliums in the same fashion for more years than I care to think about and had good germination from all but the most difficult Californian ones.

Can you tell me what the 'same fashion' is please?! Many thanks for your help - Antigone

Sow the seed fresh. It germinates better straight from the plant rather than being dried off.
Cover lightly with grit, gravel or whatever rather than compost.
Sow in a deep pot rather than a seed tray (reasons later).
Leave exposed to weather. They need a period of cold followed by warmth to initiate germination.
When (if?) they germinate do not be in a hurry to p rick them out. This is the reason for deep pot rather than seed tray. They have only one root to begin with and if it is damage, it dies and a new one has to be produced from the base of the seedling. usually they die.
Feed the seed pot with dilute Baby Bio type stuff, until the leaves go yellow then allow the pot to dry off.
Repotting may be done when they are dormant. Some types never really go dormant so be careful.
I often do not repot until they have had another seasons growth. Remember many of them actually grow in late winter/early spring.

Thanks for the info 0wdboggy! So far I have got it completely wrong then...... have had the seed in a packet in my fridge for a few months and have now sewn in compost/grit mix - but in quite deep seed pots so hope that helps! Anyway we'll see what happens!! Antigone

Keeping in the fridge as dry seeds should do no harm only keep them dormant. They need to be moist for the cold to have an effect on dormancy.
Hope they grow for you, but they do take a few years to reach flowering size. Do not be in too big a hurry to throw away the 'empty' seed pot either. Sometimes they sleep for a whole year before germinating.