Macleaya, or plumepoppy, is a genus of two or three species of flowering plants in the poppy family Papaveraceae, native to Japan and China. What Do Poppy Flowers Symbolize? The poppy flower is considered special because of its meaning. Specifically, the red poppy symbolizes remembrance, resilience, and peace. Grow PlumePoppy with Airy Flower Clusters and Large Scalloped Leaves.Plumepoppy. Wisley RHS Gardens Stock Photo - Alamy. Plumepoppy is slow to break dormancy in the spring and is often one of the last perennials to send up foliage. Dig up the clump with a shovel and divide it into smaller sections. Macleaya cordata, the five-seeded plume-poppy, is a species of flowering plant in the poppy family Papaveraceae, which is used ornamentally. It is native to China and Japan. POPPY – Plumepoppy, though it doesn’t have the large showy flowers of the true poppy, has a bold presence in the perennial border. (Photo courtesy Gerald Klingaman). Bocconia frutescens is a species of flowering plant in the poppy family known by many common names, including plumepoppy, tree poppy, tree celandine, parrotweed, sea oxeye daisy... plumepoppy1 Plumepoppy (Bocconia frutescens).Plants often resprout after control and persistence is required to completely control plumepoppy. Plumepoppy grows in tropical, subtropical and warm temperate climates, usually in areas with at least 750 mm of rain per year. Plants can grow in full sun and partial shade but not full shade. PlumePoppy (Macleaya cordata): This is a tall perennial that can reach heights of 8 feet’ with a 4-foot spread.