Actions in Place
Legally: This species is protected at the regional and European level. It is listed as a priority species in Annexes II and IV of the EU Habitats Directive.

In situ: The islet has been declared a Maritime-Terrestrial Reserve and Natural Place Paraje Natural) by the Andalusian government, and nominated for the European Natura 2000 Network. Various reintroduction and re-enforcement campaigns were carried out in 1988 and 1999 to present.

Ex situ: Fortunately, before its extinction, some seeds had been collected and multiplied at the seed bank of the Agronomists’ College (Escuela de Agrónomos) of Madrid. When cultivated in botanic gardens (Jardín Botánico de Córdoba, Conservatoire Botanique de Brest), high germination rates can be achieved.

Actions Needed
This species should be added to the Spanish National Catalogue of Threatened Species, listed in the highest category (Endangered). Ideally the island should be designated as a strict Nature Reserve. If this is impossible, habitat restoration and on-going management still needs to be carried out indefinitely, including alien species eradication, monitoring, and no new construction of infrastructure. Periodic reinforcement campaigns in order to maintain the population might be necessary. The fact that D. siettiana seems to prefer semi-disturbed habitat and competes poorly with dominant species must always be taken into account.