I must be lucky. My L. Calodictyon, I bought them just after arriving at the nursery from Ecuagenera in Colombia. They were on epibweb blocks. Both were dehydrated. After 3 weeks in my wardian case, humidity at 90%+ and 23c max, I took them off the epiweb and put them into live spagnum. They have a minimum of 4 growths each. I am using fish emulsion at 1/2 strength and a 21/21/21 fertiliser at 1/4 strength on alternate weeks. Seems good so far as they are still growing. One is a bit faster than the other.
If you are in the USA I found dealing with Orquideas Del Valle very good. They sell CITES approves plants.
Untitled Document They ship overseas if you have an order of $1000 and will get you CITES/Phyto. Or you might know someone in the states
Lucky me - CITES? whats that. Phyto? Whats that? Gotta love Thai customs