Hi Steve, glad to see you’re interested in this neat little plant. I know nothing about the subtropical Habenaria; I’ve seen pictures (very very cool looking flowers), but that’s it. Habenaria radiata does seem to be hardy here. Although I said it has survived the winter in the bog trays, the name “bog trays” might be a bit misleading. These bog trays are trays (wood sides, screen bottoms) about 8’ x 1’ which sit at the edge of my waterlily pool on shelves which allow the bottom of the tray to be submerged when the water level is high (sorry for this awful sentence – I’m in a hurry). However, as soon as the water level drops, the trays stand high and, sometimes, dry. I don’t monitor the water level much if at all during the winter. The plants in the trays have to be tolerant of soil which is not saturated at all times. From my experience with this plant, I would say that it can be wintered dry and cool/cold or wet and cool/cold. In recent years I’ve found it easier to simply dig out the corms in the autumn and store them in the refrigerator in a zip lock bag with a bit of damp paper towel. They are so small that it is easy to lose track of them. I’ve known Rhodohypoxis to survive the winter in these bog trays, although they eventually disappeared. That might have been due to rodent predation rather than lack of cold tolerance – I’ll try that experiment again one of these days. Habenaria radiata propagates slowly but surely; grow it for a couple of years under protection and you’ll soon have a bunch of corms to experiment with. Good luck and let us know what happens. Bonaventure, are you still with us? If so, Steve might benefit from your input, too. Jim McKenney jimmckenney@jimmckenney.com Montgomery County, Maryland, USA, 39.03871º North, 77.09829º West, USDA zone 7 My Virtual Maryland Garden http://www.jimmckenney.com/ BLOG! http://mcwort.blogspot.com/ Webmaster Potomac Valley Chapter, NARGS Editor PVC Bulletin http://www.pvcnargs.org/ Webmaster Potomac Lily Society http://www.potomaclilysociety.org/