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.
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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GLOSSARY
- STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
- DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
- EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
- STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
- HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
- SHRUB - a woody plant with branches growing bushy from the ground level.
- HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
- FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
- GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
