I have really wondered about orchids - do they require exra fertilizer besides bark? Mine just do not seem to flower as well as I would have hoped. They are in the shade and I do realise they need a bit of sun when they are ready to flower, but quite honestly I dont have space for a summer house for them!
Would it be better to have them on some sort of screen that could be moved out into the sun to promote flowering? Mmmm, I do have an old cane arch - that has given me an idea! I will shelve that idea in the back of my mind, but I can see pots of orchids suspended in a type of screen effect. Not sure where I would put it..... but having somethign moveable might be the idea.
Before I began gardening totally organically I used to spray my orchids with fertilizers and they would flower twice a year. Now they get a little seaweed tea, and because they are not in soil where they would get my compost, that is pretty much all they get. They are in a mixture of bark, and because they are under the tree they get the occasional dry leaf, which I mostly remove as they can actually pull nutrients out of the soil as they decompose. I have some that are now in compost and I cant say they are doing any better. Our weekly gardening show said that they must be moved into the sun to promote flowering. A common orchid here is the crucifix orchid, and a piece that a neighbour gave me is now flowering - it has been out in the sun, so I have to concur that what my orchids now need is a new home!
I have lots of other different types of orchids though and I want them to flower too!