The Sweet Pea is a showy, fast-growing ornamental shrub celebrated for its vibrant display of purple, pea-like flowers. A choice cultivar of the South African native species, this variety features larger, more richly colored blooms and more tapered, elegant foliage than the straight species. It is highly valued in coastal, Mediterranean, and water-wise gardens due to its incredible wind, heat, and drought tolerance once fully established. Botanical Name Polygala myrtifolia 'Grandiflora' Also Known As Sweet Pea Bush | Myrtle-leaf Milkwort | Grandiflora Polygala | September Bush | 大花桃叶远志 | 南非远志 Specifications Plant Type Native From USDA Zone Light Needs Watering Needs Leaves Life Cycle Avg. Mature Size Growth Rate Bloom Time Flower Color ShrubSouth Africa9 - 11Partial - Full SunRegularly until established, occasional once matureEvergreenPerennial5' Tall and 5' WideFastYear round, peaks in SpringPurple