balloon flower white, also called Chinese bellflower, perennial flowering plant of the bellflower family

Platycodon grandiflorus 'Sentimental Blue' is a specific cultivar of the balloon flower plant. The balloon flower (Platycodon grandiflorus) is a perennial herbaceous plant native to East Asia. It gets its common name from the balloon-like buds that form before the flowers open. 'Sentimental Blue' is a popular variety known for its vibrant blue flowers.

Here are some key features of Platycodon grandiflorus 'Sentimental Blue':

Appearance: The plant forms clumps of upright stems, reaching a height of around 12 to 24 inches (30 to 60 cm). It has oval-shaped leaves with toothed edges. The star-shaped flowers are typically blue, although some varieties may have white, pink, or purple flowers.

Blooming period: The balloon flower typically blooms in summer, producing flowers that last for several weeks. 'Sentimental Blue' specifically showcases its striking blue flowers during this time.

Garden use: It is a popular choice for gardens and landscapes due to its attractive flowers and low maintenance requirements. The plant works well in borders, mixed beds, and cottage-style gardens.

Care requirements: Balloon flowers are relatively easy to grow. They prefer well-drained soil and thrive in full sun to light shade. Regular watering is necessary, especially during dry spells. After the flowers fade, the plant forms interesting seed pods resembling inflated balloons, hence the common name.

Winter hardiness: Platycodon grandiflorus 'Sentimental Blue' is typically hardy in USDA hardiness zones 3 to 8. It can withstand cold temperatures and may die back to the ground in winter, re-emerging in spring.

Overall, Platycodon grandiflorus 'Sentimental Blue' is a beautiful cultivar of the balloon flower plant known for its blue flowers and ease of cultivation.