I am growing some ex alstroemeria ligtu hybrid from seed, and would like advice on at what stage I should prick out, in view of the high losses from trying to divide the brittle roots of adult hybrid plants. At present I have ~12 seedlings in a 2 1/2" pot varying from just emerging to 2" tall with 3 leaves. They are outside but protected from rain, so are not too soft. Brian Whyer, Buckinghamshire, England, zone ~8 Where recent night time frosts have hit tricyrtis growth, and my first Beschornia septentrionalis flower spike.