Platycodon grandiflorus 'Sentimental Blue', commonly known as Sentimental Blue Balloon Flower, is a dwarf, compact perennial featuring large, star-shaped blue 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, rock gardens, and containers. The charming blue blooms of Sentimental Blue attract pollinators and provide a delightful, compact display in the garden.