Platycodon grandiflorus, commonly called balloon flower, is a clump-forming perennial that is so named because its flower buds puff up like balloons before bursting open into outward-to-upward-facing, bell-shaped flowers with five pointed lobes. Plants are native to slopes and meadows in China, Japan, Korea and Siberia. Purple-blue flowers (to 2-3” across) bloom throughout summer, singly or in small clusters, atop stems typically growing to 30” tall. Ovate to lance-shaped, toothed, blue-green leaves (to 2” long).
'Sentimental Blue' is a dwarf selection that typically grows to only 6-12" tall. Features unique, puffy flower buds shaped like hot air balloons which open into 3" diameter, single, blue, upward-facing, bell-shaped flowers with five pointed lobes. Oval, dentate leaves to 3" long. Blooms most of the summer.
No serious insect or disease problems. Root rot may occur in overly moist soils. Watch for slugs and snails.