do kumquat trees need to be planted in the ground?
They do equally as well in both the ground and a pot. If you want to move your tree into a pot, wait until after it has finished fruiting. Prune it back as you would at the end of every season, then dig it out leaving a root ball that extends to the drip line. Repot it using a quality assured potting mix, and a handful of blood and bone mix that is mixed in well with the new soil. Make sure you back fill the new soil to the same level that the trunk was in the original soil. If you fill it too low, the roots may become exposed as the soil subsides, or if it is too high, your tree may die from collar rot. Once you have watered it in, making sure not to drown it. You should not need to fertilise beyond the blood and bone added earlier, as you could burn the roots and kill the plant. Only water if the soil is drying out until the new growth starts for the next season. It should do very well in a pot so long as you keep it well watered and fed. You can use a citrus mix once the flower buds