Dwarf citrus trees are naturally compact and can be grown from containers. These relatively low-maintenance shrubs need warmer temperatures to grow and will need to be brought indoors when the weather gets cold. As long as the plant receives regular light and watering, it will bear fruit, even in a container, and whether it is inside or outside. Dwarf citrus trees do require plenty of light. They thrive best when they are able to receive direct sunlight throughout the entire day. Some of the most popular varieties of dwarf citrus trees include orange tree varieties, mandarins, lemons, limes, grapefruit trees, and kumquats.