Both European and Asian peonies have been cultivated since ancient times. Those native to central China and Siberia (varieties of Paeonia lactiflora) were first introduced to the West by the 18th century and by 1784 breeding with the European peony was occurring in France and Britain. Because peonies are such long-lived plants, many 19th-century cultivars are still available. Thomas Jefferson noted “Piony” in a list of hardy perennials as early as 1771. ‘Karl Rosenfield’ was introduced in 1908 by John F. Rosenfield, an American peony breeder. The brightly colored flowers attract butterflies.
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