My pot is about 12 inches wide and my dendrobium lived there for I think two years .
Actually it is time to re-pot it because there were two big spikes with ten or more flowers and taller the canes.
Today I took it off from the pot . It was amazing to see the root system grown round and round , and looks very happy. This is first time I uprooted a plant and saw a nicely grown root system. All the roots were attached to coconut husks .
Actually the climate we got here. I give them shade , water and fert, and also disposed lot of slugs who visit them during nights and eat the leaves.
First time I saw the roots grew round and round and as a circle and full of life too.
Thanks for the dear comment.