So named for it s arching pendant brush of flowers. Most popular with landscapers. The actual blooming may take 10 years. The sword-like leaves are gray-green, spineless and grow to 2' . With age the plant can reach 5'. An excellent ornamental for southern growers or for indoors. Hardy in zones 9-12. The soil mus be well draining. Barely cover the seed using a well draining soil mixture to which you should add 30% coarse sand. After watering allow to dry thoroughly before watering again. May be grown in full sun or partial shade.