Sansevieria trifasciata Silbersee
Silbersee is a form of snake plant that has thick, sword-like silver grey leaves. Requiring very low maintenance , Silbersee is a perfect pot plant and can even be grown indoors.  Sansevieria are heat and drought hardy when established.
Size: 50cm H and clump forming
Light: Full sun to part shade and indoors in well lit area
Care: Plant in well drained soil and let dry out completely between waterings. Fertilise with liquid fertiliser in growing season. 
Note: Sansevieria can be toxic to pets when eaten in large amounts.