Incrediball' produces flowers that open green, then mature to white before fading to green again. Will reach 4-5' tall and wide.
Sister Theresa' produces massive, true-white blooms. It will grow to be 4-5' tall and wide at maturity.
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.