Plumbago indica, commonly known as Scarlet Leadwort or Whorled Plantain, is an evergreen perennial vine or shrub native to the moist deciduous forest areas and thickets of South and Southeast Asia. It typically grows to 2 m (7 ft) tall by 1 m (3 ft) wide and features a spreading habit with oval to oblong leaves. The plant is notable for its racemes of deep pink or scarlet flowers that bloom from late summer to autumn, providing a vibrant display. The flowers are tubular and arranged in dense clusters, attracting pollinators such as butterflies.

Scarlet Leadwort is valued for its striking flower color and long blooming period, making it a popular choice for tropical and subtropical gardens. It can be used as a ground cover, for border planting, or trained to climb on supports. While it can tolerate a range of soil types, it thrives in well-drained, fertile soils. It requires protection from frost and prefers a position with full sun to part shade. Regular watering is necessary, especially during dry periods, but overwatering should be avoided to prevent root rot. Scarlet Leadwort can be propagated from cuttings or seeds, and pruning after flowering helps maintain its shape and encourage further blooms.CC BY-SA 4.0