Giant Hesperaloe is a nice specimen plant that reaches about 6FTx6FT at maturity. It grows creamy white blooms on a 12FT stalk from spring to fall. This plant is related to Hesperaloe Parviflora more commonly known as "Red Yucca" but they are not true Yuccas it is just easier to say. Their hardiness is Zone 6 about -10F.