With glossy evergreen leaves, citrus trees come in a variety of fruit types including lime, mandarin, grapefruit, tangerine, key lime, kumquat, orange and more. Citrus trees thrive in garden pots, but can create a lovely outdoor citrus garden in the right climate. Citrus plants and shrubs are small to moderate sized trees with thorns and fragrant flowers.
Citrus trees bear fruit with a tough rind, known as the zest. Citrus fruits are juice-laden, making them great when eaten off the tree, squeezed for fresh juice or even preserved in marmalades.