As you know you can grow orchids in almost any media. Water culture has been around for a long time. I read about it first on the former orchid vendor, Venger's website.
This is my third orchid collection and I now enjoy living with my orchids during the cold Winter in the house. I find water culture is a good way to clean up orchids and treat infection before I put them into SH. If the root rot returns I simply take out a razor blade, scalpel, whatever is handy, cut off all rot, teat with Hydrogen peroxide and put it back in a clean disposable cup of nutrient solution. Of course, insects on new orchids are also very easy to eliminate.
If they have a yet unexpressed genetic potential to induce water-tolerant roots by this new environment as well as sufficient resistance to infection and no viral disease, they do very well and I end up with healthy plants for long-term SH culture with adequate tolerance for low humidity. If they don't, they go quickly. No sloooow death to watch. The older I get the more I have to see of that elsewhere.
In fact, some of them grow best in water culture and the blooms last longer. These include some hybrids in Cocleantes, Catt., Dendrobium, Leptotes, Oncidium, Rodiquezia. I have more photos in my album in my gallery.
By the way, Phals do not do well for me in water maybe because I don't chose to spend the time disinfecting them every time the water seeps up between the leaves. Venges also found that Phals grew better in other media.
Last edited by Sun rm.N.E.; 12-14-2009 at 01:27 PM..