In a late answer to Lee's first question, plants grow where they are able to compete successfully, which may not be where they would most like to grow. Some high Andes bulbs can be out-competed at lower elevations in habitat because they may be shaded out by faster growing plants, to give one example. These same bulbs may be able to adapt well to low altitudes when in cultivation because the grower is helping them compete by pulling weeds, etc., and the lower altitude conditions do not bother them. Some may actually do better in them. Other high elevation plants will not survive at lower elevations in cultivation due to one or more environmental conditions. Orchid growers have several categories of growing conditions (warm humid, cool humid, & others (I think)) to meet the requirements of various plants. Their greenhouses can get pretty elaborate. _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net>