Posted: 02/11/2014 at 20:36
In March, I get a seed tray with some compost and just lay the corms on top, burying them slightly, about half way up the corm, I am fortunate to have a warmish conservatory, but you can put them on a window sill.
Keep fairly dry then when they show shoots let them grow to about 2inches then pot them into 6/7 inch pots. Gradually harden off before planting out. I dont ever put mine out, they stay in the conservatory.
That is only because its always wet and windy where I live.
Oh and they do benifit by a weekly feed of Tomorite or similar to promote more flowers.