These tall perennials from China and Japan are often still listed under Bocconia, a name properly belonging to their shrubby tropical relatives. Tall, branching stems carry clouds of tiny flowers. Leaves are large and deeply lobed. Plants look tropical, and their garden value lies in size and structure rather than floral impact. Spread by creeping rhizomes and can be invasive if not controlled.Macleaya cordata
To 7 to 8 ft. tall and 3 ft.wide, with grayish green, 10-in. leaves. White to beige flowers. Considered less invasive than Macleaya microcarpa.
Native to South Africa. Reedlike plant to 6 ft. tall and 4 ft.wide; looks something like a big, feathe...
This fast-growing, erect tree from the jungles of Indonesia, Philippines, New Guinea reaches 75 to 200...
Grows 6 to 9 in. tall, 10 ft. wide. Soft green foliage.