How to Grow Balloon Flower (Platycodon): Pop-able Buds and Starry Blooms

How to Grow Balloon Flower (Platycodon)

Balloon Flower (Platycodon grandiflorus) delights kids and adults: balloon-like buds pop when squeezed, then open to 2-inch, five-pointed stars in violet-blue, pink, or white. Foliage turns gold in fall. Native to East Asia. Great cut flowers (seal stem with flame). Attracts butterflies. 12–18 inches tall; suits containers, beds, borders.

Propagation

Sow seeds spring, barely cover (1/16 inch) or press in. Space 8–10 inches. Germinates 5–21 days. Also roots from young shoot cuttings. Division possible but tricky.

How to Grow Balloon Flower

• Light: Full to part sun.
• Soil: Moist, rich, well-drained. No wet feet or drought.
• Water: Regular, especially in heat.
• Fertilizer: High-nitrogen in spring; general-purpose early summer.
• Maintenance: Pinch for bushiness. Stake if needed. Deadhead for rebloom. Mulch 2 inches for winter protection (critical in cold zones).

Bloom Time

Late spring and again late summer.

Pests & Diseases

Resistant. Deer-resistant too.