Start by purchasing a healthy seedling from a reputable nursery.
Select the correct sized container, starting with a 6-to-9-inch pot for a one-year tree. For dwarf citrus trees, a smaller container will suffice. As the citrus tree grows, increase the size of the container.
Make sure there are sufficient holes in the bottom of the container, as citrus trees require plenty of good drainage.
Fill the bottom of the container with an inch of airy soil, such as that mixed with vermiculite, cedar or redwood shavings.
Gently remove citrus tree from plastic starter pot, loosening soil around the roots to aerate.
Place the citrus tree into the container and fill in with soil, covering the top of the roots. Do not cover the trunk.
Press the soil around the root ball to provide stability.
Place newly potted citrus in full sun.
Give the soil a heavy watering until it flows from the bottom of the container whenever the soil feels dry, about once to twice a week.