Hi Fred, The trick to getting these Andean bulbs to bloom is to allow them to cool down for several months. My P. viridiflora multiplies well just like yours. I don't think it has as much to do with mixes as it has to do with cooling them to get them to bloom. My pots stay outside (Berkeley, CA) and cool down to near freezing temperatures (8-4C) for a few months and the temps even dip down to -2C some nights. I also stop watering them during dormancy, but because my winters are cool and moist, the pots never dry out and I don't ever recommending drying out completely for these bulbs. Nhu On Sun, May 10, 2015 at 12:52 PM, Fred Biasella <arlen.jose@verizon.net> wrote: I even keep them cool and dry in the winter like the clivias, > but.no dice. What am I doing wrong? Help? > >