Hello all, Cymbidium faberi, goeringii, kanran, and tortisepalum/longibracteatum would indeed grow and flower well in unheated frost-free greenhouse. Tip: keep in mind that they require tall, slender pots (think of a rose pot but much, much smaller :-). A Cymbidium goeringii and the like would be perfectly happy for years in a pot 7cm wide and 18cm high! If you're looking for Cymbidums to be grown indoors all year than you may want to look into hybrids such as Cymbidium Eastern Bunny, Eastern Beauty, Easern Cloud, Eastern Message and Nagalex which have proven to be quite adaptable when it concerns temperature requirements. If you are looking for species to be grown indoors then please have a look at Cymbidium aloifolium, biolor, dayanum, finlaysonianum (although this may prove too large :-) ) and a few others... Now when it comes to finding them... you may want to look at orchid nurseries on the continent. I know my parents have at least some of the species/hybrids mentioned above for sale in their nursery ;-) kind regards, Kenneth.