Platycodon grandiflorus 'Hakone Blue'
Balloon Flower, Chinese Bellflower
Family: Campanulaceae Bellflower
| Type | Perennial |
| USDA Hardiness range | 4A - 8A |
| Exposure | Partial shade to full sun |
| Bloom color | Blue |
| Bloom time | Mid Summer to Early Fall |
| Water needs | Dry |
| Landscape uses | Border, container, rock garden, specimen |
| Height | 18" to 20" / 45cm to 50cm |
| Spread | 18" to 24" / 45cm to 60cm |
| Growth rate | Slow |
| Persistence | Deciduous |
| Bloom attributes | Suitable for cut flowers |
| Leaf color | Green |
| Fruit color | n/a |
| Soil pH requirements | Acidic, neutral |
| Soil type | Sandy, loamy |
| Form | Upright or erect |