I consider Ludisia to grow like weeds. It just needs to be in contact with the medium or anything humid (plain water also) and it starts to grow.
Here's some photos (sorry for the bathroom background but I live in a flat)...the plant in the pot was a Xmas present from my son and daughter two years ago and it was just a small plant with one spike only.
Now, two years after, it has this size.
It's not visible in the photos but some of the branches are broken....even though, they spike.
One of the branches was broken and separated from the other plant....a cup of water was all it needed to grow and spike (some of the new leaves kept growing under water).