Plant Calculator

Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Platycodon grandiflorus 'Astra Double Blue' you will need.

Approx. Length (ft):
Approx. Width (ft):

*Correct and successful spacing is complex and depends on project conditions.

Platycodon grandiflorus 'Astra Double Blue'

Balloon Flower

  • Double, bell-shaped blue flowers
  • Long blooming
  • Compact habit ideal for borders

Proven Winners
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Attracts Wildlife
• Attracts Pollinators
Exposure
• Full Sun
• Partial Sun
Foliage Color
• Green
Soil Moisture
• Average Water
Habit
• Mounding
Season of Interest (Flowering)
• Summer