The Cathedral gardens are formed by species such as cypress, ficus, roses, bird of paradise, black olives, bitter orange, mandarin, privet, Canary Island date palm, and other date palms.
Especially beautiful is the so-called Patio de los Naranjos, with its entry in chains. It highlights a sapling of aromatic white flowers called Toxicophlea spectabilis (toxic). This species comes from the Cape of Good Hope, being curious to use poison arrows through knowledge of sap. Black olives can be also found.