Perennials

Platycodon grandiflorus 'Twinkle Blue'

Twinkle Blue balloon flower

Platycodon Twinkle Blue. Photo courtesy of Ball Horticultural Company.

Balloonlike buds open to blue stars on compact, well-branched plants. Remove faded flowers to prolong bloom. Avoid unnecessary division or transplanting; the fleshy roots are fragile.

At a glance

Sun: Full sun to part shade
Mature size: 6–8 in. tall × 6–8 in. wide
Water: Moderate; well drained
Hardiness: USDA zones 3a–8a
Bloom: Blue; midspring–summer.

Sizes & prices

#1$16.99

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Resistance & tolerances

Wet soil: Avoid waterlogged roots.

Pollinators & wildlife

Attracts: Pollinators

Growing & care

Placement: Small borders and patio pots.
Spring: Mark its position; growth can emerge late.

Sources & photo credits

Syngenta Flowers

NC State Extension

Photo: Ball Horticultural Company · Authorized product promotional use; correct variety and series must accompany reproduction; images may not be resold or licensed.

Reviewed September 19, 2026. Growing conditions vary by location.