Agave wislizeni subsp. parrasana
This succulent, native to North East Mexico, grows in mountainous areas at high elevetion, on chaparral shrub, pine-oak forests on limestone and grassy slopes. It is endemic to a very small area in south-eastern Coahuila.
This small sized Agave produces a compact, subspherical and symmetical rosette, that usually is 60 cm tall and wide. The waxy leaves are short, stout, oboval; they are grey-green covered in a silver dusting. On the margins, there are brown-greenish spines, and a thin red terminal spine. Flower buds are red, until they get ripen: blooming, they get yellow. They are protected by thick bract leaves. Filaments are long, reddish purple, while anthers are yellow. Agave Parrasana blooms once in summer, then it dies.
Agave Parrasana does well both in containers and well-drained, porous spots outside. They needs full sun to be healthy, compact, and to get their tipical blue-grey shade. Water only when soil gets dry, and in winter, once every 1-2 months. It is hardy to frosting temperatures, down to – 12° C when dry. Agave Parrasana is also excellently heat and drought tolerant; however, for its wellness, prevent drastic changes in its growing conditions.
Propagation can be done by seeds, or by suckers: remove them in summer, let them dry, then put them in compost.
The name of this Agave is a geographical epithet: it refers to its location in the Sierra de Parras.