Balloon Flower Blue Seeds (Platycodon grandiflorus)

The Balloon Flower Blue is a hardy perennial named for its unique balloon-shaped buds that open into striking star-like, violet-blue flowers. Blooming from mid to late summer, it provides bold color and a touch of elegance to borders, rock gardens, and cottage-style plantings. Easy to grow and long-lived, it thrives in sunny or lightly shaded spots and is a favorite with pollinators.

What Makes It Special

• Unique balloon-shaped buds that burst into vivid starry blooms

• Hardy and long-lived perennial with minimal care needs

• A pollinator-friendly flower with long-lasting summer color

Key Features

• Botanical name: Platycodon grandiflorus

• Hardy perennial

• Height: 50–70 cm (20–28 in)

• Bloom time: Mid to late summer

Ideal For

• Cottage and perennial borders

• Rock gardens and mixed beds

• Pollinator-friendly gardens

Sowing

• Sow indoors Feb–Apr or outdoors May–Jun

• Lightly press seeds into soil; do not cover heavily (needs light)

• Germination: 14–21 days at 18–22°C

• Transplant seedlings 30 cm apart

• Flowers from the second year after sowing