Illustrative photo.
Platycodon grandiflorus 'ASTRA BLUE' balloon flower
size/type
low or groundcovering,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
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.
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).
Last update 14-07-2008; 18-07-2012
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