Hawaiian baby woodrose (Argyreia nervosa) is definitely not an infant in size, as its heart-shaped leaves can grow to 1 foot in length, and the vine may clamber to 30 feet. Its lavender-pink trumpet-shaped flowers are of more moderate dimensions, however, usually about 2 inches across and 3 inches long with maroon centers. When open, the woody seedpods look like miniature roses, explaining the plant's common name. Although similar to morning glory in culture, Hawaiian baby woodrose forms tubers that make it perennial in U.S. Department of Agriculture plant hardiness zones 9 to 12.