Remove the plant from the nursery pot and place the tree in the container. Add prepared soil mix. The graft should be at least three inches above the soil level. Water when necessary. Don't let the tree dry out or be too wet.
Good drainage is essential.
In the wintertime it is a good idea to mist your trees occasionally. Citrus are very adaptable. Add fresh soil and replace in the same pot. This will give you an attractive bushy dwarf tree. Make sure you repot your plant before new spring growth begins.