Platycodon grandiflorus 'Astra White', commonly known as Astra White Balloon Flower, is a compact, clump-forming perennial featuring large, star-shaped white flowers that bloom from mid-summer to early fall. Thriving in full sun to partial shade and well-drained soil, this variety is ideal for borders, containers, and rock gardens. The pure, white blooms of Astra White attract bees and butterflies, providing a clean, elegant look to the garden.