Also known as Balloon Flower · 353 gardener saves
Platycodon: the varieties gardeners actually grow
Platycodon, the genus most gardeners know as balloon flower. We track 7 varieties; these are the ones gardeners actually save and plant, ranked by real saves rather than catalog marketing. Each links to full care, bloom, and live price data.
The 7 most-saved Platycodon varieties
Of 7 in the catalog — ordered by how many gardeners actually grow them.
#1 most savedBalloon Flower
Platycodon grandiflorus 'Mix'
#2 most savedBalloon Flower 'Sentimental Blue'
Platycodon grandiflorus 'Sentimental Blue'
#3 most savedAstra Pink Balloon Flower
Platycodon grandiflorus 'Astra Pink'
Fairy Snow Balloon Flower
Platycodon grandiflorus 'Fairy Snow'
Balloon Flower Shell Pink
Platycodon grandiflorus 'Shell Pink'
Balloon Flower
Platycodon grandiflorus 'Fuji Blue'
Astra Double Blue Balloon Flower
Platycodon grandiflorus 'Astra Double Blue'
How to grow Platycodon
What the Platycodon varieties in our catalog actually agree on — drawn from the care records of the 7 most-grown of them, not from a generic template.
The Platycodon year
- DeadheadJune–August100% of varieties
Remove spent blooms to encourage continued flowering.
- Spring CleanupFebruary and March86% of varieties
Cut back old stems to the ground before new growth emerges.
- FertilizeMarch and April57% of varieties
Apply a light, balanced fertilizer in early spring.
Do
- Deadhead spent flowers to encourage more blooms
- Water consistently to keep soil moist 🌱
- Apply organic mulch to retain moisture and suppress weeds
- Prune after flowering to shape and promote new growth
- Water regularly to keep soil moist 🌱
Avoid
- Avoid overwatering to prevent root rot ❌
- Don’t transplant during peak flowering
- Don’t disturb roots during the flowering period
- Never fertilize with high nitrogen fertilizers late in the season
What goes wrong with Platycodon
| Problem | What you'll see | What to do |
|---|---|---|
| Aphids | Curled, yellowing leaves with sticky residue | Spray with insecticidal soap or neem oil |
| Slugs | Irregular holes in leaves, slime trails | Handpick at night or set slug traps |
| Japanese beetles | Chewed foliage and flowers | Handpick or apply appropriate insecticide |
| Snails | Irregular holes in leaves | Use organic snail bait or handpick at night |
| Root rot | Wilting and blackened roots | Improve drainage and reduce watering |
| Powdery mildew | White powdery coating on leaves | Apply organic fungicide and improve air circulation |
Making more Platycodon
Division
- Divide mature plants in early spring or fall.
- Replant divisions immediately into prepared soil.
Seed
- Tuck seeds into moist soil in early spring, 6 weeks before last frost.
- Keep soil consistently moist until germination occurs.
Platycodon questions
How many types of Platycodon are there?
The Sow catalog tracks 7 distinct Platycodon varieties. The most popular — ranked by 353 real gardener saves — are shown first above.
What zones does Platycodon grow in?
Across its varieties, Platycodon covers USDA Zones 4–9. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Platycodon bloom?
Most Platycodon varieties bloom in mid-summer, mid to late summer, summer. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Platycodon should I choose?
Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.
Keep exploring
Platycodon shows up in
Design with Platycodon in your own yard
Snap a photo of your space and see these varieties planted in it — sized correctly, matched to your zone, with care reminders included.
