Citrus maxima – PomeloCitrus maxima, the pomelo, is a strong growing citrus species with broad evergreen foliage, fragrant flowers and very large rounded fruit. In pot culture it develops into a substantial ornamental citrus shrub or small tree, so it needs space as well as high light. Use a free draining citrus substrate, water consistently during active growth and keep container plants bright, protected and above about 10C through winter.