Agave ANGUSTIFOLIA 'MARGINATA' - Variegated Caribbean agave, Narrow-leaved agave, Agave angustifolia 'Marginata', Agave vivipara 'Variegata'.
Agave is a genus of evergreen perennial herbaceous plants in the family Asparagaceae, comprising about 300 species distributed across Caribbean islands and arid regions of North, Central, and South America. No more than 50 species are common in cultivation.
Representatives of the genus form rosettes of fleshy leaves, often with prickly edges and sharp terminal spines. Leaves can be broad or narrow, colored in gray-green, glaucous, or green shades, sometimes with variegated coloration. The stem is generally shortened. The plants are adapted to prolonged droughts, spreading widely with powerful roots, absorbing moisture from topsoil layers, and storing it in their leaves.
Flowering occurs at 15-20 years of age, after which the plant dies. A tall peduncle emerges from the rosette of robust leaves, at the top of which an inflorescence forms in the shape of a panicle or raceme, usually yellow or cream-colored. The fruits are capsules with flat seeds. After seeds mature, the aboveground parts of the mother plant die back, and offsets grow from the rhizomes.
Variegated Caribbean agave is a small perennial 50-90 cm (20-35 in) tall, forming a mound with a dense round rosette of leaves that open on a short trunk. Leaves vary considerably in length depending on growing conditions, but can reach up to 60 cm (24 in) or more, rigid, sword-shaped, concave, with incurved margins or folded, blue or blue-greenish, 5-10 cm (2-4 in) wide at their widest point, narrowed in their lower third, toothed along margins, and with a spine-tipped point on the central axis. Flowers are greenish-yellow or white in terminal panicles about 5 cm (2 in) long. Peduncles reach up to 2.5 m (8.2 ft) in height.