Sorry, that should have been spelt camas (Caamassia).

I haven't grown my own from seed but the most common suggestion including that from UW.edu -

Seedlings should remain in the seed pot undisturbed their first year. When the plants are dormant in late summer, pot up the small bulbs putting 2 - 3 bulbs in each pot. Grow them on for another year cold frame before planting them out when dormant in late summer....most container plants grown from seed were ready for planting after 2 years.

Morz8...Thanks for the info. I'll leave them alone until next year then!