Eurybia radulina, commonly known as Roughleaf Aster, is an herbaceous perennial native to the Pacific Northwest of North America, specifically found in open woodlands, forest edges, and dry, rocky slopes west of the Cascade Range in British Columbia, Washington, Oregon, and California. It typically grows to a height of 1-3 feet (0.3-0.9 meters) and spreads 1-2 feet (0.3-0.6 meters) wide. The plant is characterized by its rough, hairy leaves and small, daisy-like flowers with purple rays and yellow centers that bloom from late summer to fall, adding a splash of color to the landscape when many other plants have finished flowering.

Roughleaf Aster is valued for its drought tolerance and ability to thrive in poor, rocky soils, making it an excellent choice for xeriscaping and naturalistic plantings. It is also used in restoration projects due to its adaptability and the role it plays in supporting pollinators. In cultivation, it prefers full sun to part shade and requires well-drained soil. While generally low-maintenance, it can be susceptible to powdery mildew in humid conditions. There are no widely recognized cultivars of Eurybia radulina, but its natural form is well-suited to informal garden borders and wildflower meadows.CC BY-SA 4.0