In a pot containing potting soil with an organic matter base, make a shallow trench, deeper than the thickness of the cutting. Cover the cutting (stem) with potting soil. Water as you would any Ludisia plant.
I prefer to grow them in sphagnum, but the advice is otherwise the same.
__________________
Ray Barkalow, Orchid Iconoclast Want Better Plants? READ THIS firstrays.com Free Shipping in the US! (see terms & conditions for details)
For me, for long-term care, a potting mix (such as for African violets) works best. Usually over a more well-drained base (bark, or bark with inert material, such as gravel or styrofoam chips).
For just rooting cuttings, the potting mix alone will do.
Why let the cutting dry? To avoid fungus? I've never grown Ludisia, but when a piece of my Macodes breaks off I just stick it in the potting mix next to the rest of the Macodes and it roots from the nearest node in a few weeks...
Thanks for the replies.
From what I understand, I can put it directly in the medium or I can put it in water (faster method). As soon as small roots appear (approx. 1 month) it can be potted.
I have put it in water...wait and see.
I already have one root, around 1 cm in length. I think it's still too early to pot it but what do you think?
In the meanwhile, another growth broke off but it has roots in the medium. I will have to cut them because if I pull, the complete plant comes out of the pot.