agave is a large perennial evergreen herb of Amaryllidaceae and Agave. Agave is a kind of evergreen herb that has been growing for many years. Its leaves are rosette-shaped, usually 3-4, and as many as 5-6. There are scattered thorns at the edge and top of the leaves, and there is a dark brown hard spike at the top. The flowers of agave are yellow-green, and the beads will decrease after flowering.