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Platycodon grandiflorus Blue - Balloon Flower

Platycodon grandiflorus Blue (Balloon Flower) seeds


Neat, clump-forming perennial which is very easy to grow and blends beautifully into any border. Has handsome silvery-green foliage and balloon-like buds which burst into bell-shaped blue flowers during summer.

Winner of the Award of Garden Merit.

Hardy Perennial
Flowers: Summer
Height: 30-45cm
Position: Sun

Packet of 50 seeds



Sowing Instructions: Can be sown at any time of year except early to mid-summer.  Sow in pots or trays on the surface of a moist, well-drained seed compost (eg. John Innes). Do not cover the seed as light is beneficial to germination. Place in a propagator or seal in a polythene bag and maintain a temperature of 18-21C. Germination should take from 15-30 days and as the seedlings emerge, gradually increase ventilation by opening the bag or propagator vents.

Growing Instructions: Pot on when large enough to handle into 7-9cm pots and grow in cooler conditions. Overwinter if necessary in frost-free conditions, ie. greenhouse or insulated coldframe. In spring, gradually acclimatise to outdoor conditions, before planting out when all risk of frost has passed in a sunny position.

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