Platycodon

Platycodon grandiflorus

''Platycodon grandiflorus'' is a species of herbaceous flowering perennial plant of the family Campanulaceae, and the only member of the genus ''Platycodon''. It is native to East Asia . It is commonly known as balloon flower , Chinese bellflower, or platycodon.
Platycodon grandiflorus 'Astra Blue', It is commonly known as balloon flower (referring to the balloon-shaped flower buds) Bought a batch 7 years ago and they are coming back ever since.  Chinese bellflower,Geotagged,Germany,Platycodon grandiflorus,Summer

Appearance

Growing to 60 cm tall by 30 cm wide, it is an herbaceous perennial with dark green leaves and blue flowers in late summer. A notable feature of the plant is the flower bud, which swells like a balloon before fully opening. The five petals are fused together into a bell shape at the base, like its relatives, the campanulas.
Balloon flower, Chinese bell flower (Platycodon grandiflorus) Here we have a "Sentimental Blue" balloon flower. named so because before the flower bud opens, it swells up like a balloon. Chinese bellflower,Geotagged,Platycodon grandiflorus,Summer,United States

Habitat

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Platycodon grandiflorus is a perennial plant which is commonly grown in mountains and fields. It is 40 to 100 centimeters high and has thick roots, and white juice comes out when the stem is cut. Leaves are 5 to 12 centimeters long, with narrow ends and teeth on the edges.

Flowers bloom purple or white in July and August, with one or several running upward at the end of the circle. The flower crown is divided into five branches in the shape of an open bell.

It lives throughout Japan, China, and eastern Siberia, including the Korean Peninsula.

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderAsterales
FamilyCampanulaceae
GenusPlatycodon
SpeciesP. grandiflorus