There is a conservatory there, found this on wiki, neat stuff.
"Today the conservatory manages 180 hectares of agricultural land, as well as three vineyards, and preserves several collections of rare varieties of olive trees (more than 500 trees), fruit trees including stone fruit and citruses, mulberry, fig trees, and palm trees, with a particular emphasis on heritage varieties that serve as a gene reserve. It also conserves some 2,000 plant genes in its seed bank."