Select the size of container, height what reference?
If the root or root is too long, can be properly trimmed, a bowl to
Do not take account the plant root into the pot, to be able to spread out, it will not bend
With mud plants, into the pot, the pot should be left around 2-4 cm gap, in order to join the new soil.
The pot mouth diameter should be roughly in line with the crown diameter of the plant.