in 1991. The gardens hold collections of Mediterranean plants, including rare species from Gibraltar like the Gibraltar Campion, rescued from extinction in 1994. There are many plants from similar climatic zones, like Pelargoniums from South Africa, bottle-brushes from Australia, and the rare Torrey Pine from California.
One of the prize collections in the Alameda is that of succulent plants, especially Aloes, including a large number formerly at the Royal Botanic Gardens at Kew. The tree cover of the Gardens gives them a wooded feel, with Stone Pines and Olives giving the Mediterranean touch.
Most impressive however are probably the Moroccan Dragon Trees, including one over 300 years old. A number of historical monuments and old guns complete the picture. Further improvements are under way, including a new reception area and interpretation centre.