Description
Balloon Flower or Chinese Bellflower, (Platycodon grandiflorus) is a long-lived perennial native to East Asia, including China, Korea, and Japan. It has been grown for centuries both as an ornamental plant and for its use in traditional herbal practices. The unopened buds swell into rounded, balloon-like buds before opening into star-shaped blue flowers, a feature that gives the plant its common name.
In traditional Chinese and Korean herbal systems, the root—known as Jie Geng—has been used to support the respiratory system. It appears in classical formulas where it is used for cough, throat irritation, and congestion. In Korean cooking, the root is eaten as a bitter vegetable, soaked and seasoned to enhance its flavor.
Balloon Flower forms a tidy clump of upright stems bearing blue to violet blossoms in mid to late summer. The flowers open gradually, each emerging from its inflated bud, giving the plant a prolonged bloom period. It typically reaches 18–24 inches in height and blends well into perennial borders or herb gardens.
The roots are generally harvested after a few years of growth. The plant prefers well-drained soil and moderate moisture, and once established, it is tolerant of a range of conditions. It will grow in full sun or partial shade and is slow to emerge in spring, often appearing later than surrounding plants.
An easy to grow perennial, hardy to zone 3, it returns reliably each year and remains in place without spreading aggressively.
