Astra White Balloon Flower

Astra White Balloon Flower

Platycodon grandiflorus 'Astra White'

This upright perennial bears white flowers in summer.

  • White flowers are produced in summer, providing colour through the bloom season.
  • Upright clump, reaching 25 cm at maturity; divide every three to four years to maintain vigour.
  • Best in full sun to partial shade to full shade with moist, average, dry, well-drained soil.
Size
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Plant Characteristics

Sunlight
Full sun, Partial shade, Shade
Soil Moisture
Well-drained, Moist, Dry, Average
Drought Tolerant
✓
Hardiness Zone
3 – 3
Mature Height (meters)
0.2 – 0.25
Mature Spread (meters)
0.35 – 0.4
Growth Rate
Medium
Flower Colour
White
Foliage Colour
Green
Bloom Time
Summer
Habit
Upright
Deer Resistant
✓
Rabbit Resistant
✓
Pollinator Friendly
✓
Landscape Uses
Border, Rock garden
Growing & Maintenance Tips
Grows best in an average to moist, well-drained soil, in full sun to partial shade. Not easily transplanted once established. It is late to emerge in spring, so it is important to mark the crown areas to avoid damage during early cultivation. Remove spent flowers to prolong bloom time or prune back after flowering to maintain shape.
Notes
Also referred to as Chinese Balloon Flower, Chinese Bellflower, Japanese Bellflower. The common name "balloon flower" refers to the buds, which swell like balloons before opening.

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