For a great focal plant, look no further than Agave franzosinii. This giant Agave grows 6 to 8′ tall and up to 10′ wide. Agave franzosinii’s silver/blue leaves make its presence known. With long arching leaves lined with prominent teeth, it should be planted away from foot traffic as the sharp-edged leaves can be a hazard. When it matures, a flowering stalk appears with bright yellow flowers that can reach up to 40′ tall. It requires summer irrigation in hot inland climates to look its best. This dramatic succulent is remarkably hardy and very low maintenance.