I was given some seed of this in October last year (from UK garden flowers) and sowed it then, keeping it in my frost free greenhouse. It germinated well before year end but has now gone dormant leaving me with a number of rice grain sized corms. What is the best way of treating them now to get them into the normal summer flowering UK cycle? I have grown this species before from bulbs and seeds but don't recall getting out of our normal summer growing and flowering cycle before. Brian Whyer, Buckinghamshire, England, zone ~8