Puya mirabilis

 Tterrestrial bromeliad native to Argentina and Bolivia. In nature these plant will reach around 6 feet tall, but in containers their size is reduced to about 2 feet tall (60 cm). The grass-like foliage grows from basal rosettes and has many spines along the margins. The spines are not sharp or stiff as in some bromeliads. They will form large clumps if planted in the landscape. They produce offsets freely and clumps can reach up to 8-10 feet (2.4-3 m) wide. Very sharp drainage and shelterd spot if you want to try this ouside in Winter.