Agave angustifolia Marginata has sword-shaped, hard, stiff leaves that are centered with a creamy white stripe. The leaves grow at right angles with the center of the cluster forming a vibrant and formal roundness that lacks the droopy, downward leaf curl that most agaves display. This plant can be dangerous to children with its thorns and terminal spike and is not recommended for planting in unprotected landscapes where children visit, but the Agave angustifolia Marginata is a superb choice for containerizing. Zone 8-10The Agave angustifolia 'Marginata' plant can grow to be 3 ft. tall and up to 2 ft. wide making a fantastic potted plant for entryways to buildings. Agave angustifolia 'Marginata' is a slender succulent plant that has brightly variegated stripes that extend up and down the length of the leaf. The leaves arc gracefully and are attached to the base of the plant and topped by a dark spike at the tip.