When do you transplant an orchid?

Question

It is in a very small pot and it is growing rapidly. It has 4 new leaves and lots of new shoots at the base. It is not currently blooming.

Answer 1

The best time to repot if needed (orchids like cramped quarters) is soon after flowering. Here's how:

http://www.ladybug.uconn.edu/FactSheets/orchid-care-and-repotting.php

https://www.gardeningknowhow.com/ornamental/flowers/orchids/indoor-orchid-care.htm