Alice' is a large, oakleaf variety that can reach 8-12' tall and wide at maturity. It produces large, white, panicle blooms that cover the entire plant in summer and contrast against its rich-green foliage.
The 'Blue Sentry' is a trunk-forming yucca that grows 8-12' tall and 4-6' wide. Its powder-blue leaves have a pronounced spine at the tip. White flower stalks can reach 5-6' tall.