Ceratonia siliqua – carob, Algarrobo in Spanish. A Mediterranean evergreen tree that grows in heat and drought. Flowering in the autumn Carobs23Jun09the green pods turn brown and ripen the following autumn and are used for animal feed and also processed to make a gum used as a thickening agent. History says that the word Carob is related to Carat and the bean was a measure which became the standard for measuring the weight/quality of gold and gemstones. The tree has other names such as locust bean and St John’s bread which tradition says, refer to St John the Baptist eating honey and locusts, the bean rather than the insects. In Luke 15 v 16 the pods that the swine ate could have been carobs!