Illustrative photo.
Platycodon grandiflorus 'ASTRA BLUE' balloon flower
size/type
low or groundcovering
usual height
0,2-0,3m
leaves
deciduous broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
July-August
location
full sun
USDA zone (lowest)
3 (down to -40°C)
winter protection
for zone 5+6
for zone 7
mycorrhizal product
Symbivit Tric (arbuscular)
Symbivit (arbuscular)categorized
Description of the plant
Balloon flower is another showy perennial with violet-blue flowers in summer. They are bell-shaped with 5 petals opening wide, growing on tops of 20-25 tall stems. Buds are large, balloon-shaped.
Leaves are toothed at margins, green or bluish green and emerge very late. We recommend marking a place with the plant so that you don’t dig it out by mistake in the spring when all other perennials have emerged already.
Last update 14-07-2008; 18-07-2012
Growing conditions and care
Balloon flower dislikes disturbance once established. It loves sun, and loamy, well-drained, fertile soil which should never dry out extremely. Use in rockeries or in the front of a herbaceous border. Fully hardy to -29°C (USDA zone 5), or if mulched it can withstand -37°C (USDA zone 3).
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