How to grow Balloon Flower

Platycodon grandiflorus

Start indoors in February/March, or direct sow outdoors after the last frost.

May be Winter Sown.

By our calculations*, you should look at sowing Balloon flower about 49 days before your last frost date .

These estimates for how long Balloon flower takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Days to Germination How long does it take Balloon flower to germinate?: 29 days
Average 29 days | Min 7 days | Max 105 days (7)
Days to Transplant How long until I can plant out Balloon flower?: + 69 days
Average 69 days | Min 42 days | Max 128 days (4)
Days to Maturity How long until Balloon flower is ready for harvest / bloom?: + 69 days
Average 69 days | Min 69 days | Max 69 days (1)
Total Growing Days How long does it take to grow Balloon flower?: = 167 days

Our when to plant Balloon flower estimates are relative to your last frost date.

When to sow The number of days to sow Balloon flower before or after your last frost date.: 49 days before Last Frost Date

The botanical epithet is from the Latin grandiflorus meaning “with large flowers”

Chinese bellflower, Japanese bellflower, Platycodon, Common balloon flower, Balloonflower, Jie-Geng, Balloon flower 'astra semi-double lavendar

Campanula grandiflora