Pot on Lady,s they are normally planted 3 corns to a 6 inch pot, it is a little bit late in the season for repoting but to be honest I have not lost one yet. Take it out gently have a look for any seed corns among the rots take these off, and replant as above don,t forget you need a good Orchid compost, keep out of direct sun at all times, keep moist, and use a plant saucer to water they grow in moist and hudid conditions so think Amazon weather :) :)