Photo of Platycodon grandiflorus form by Panayoti Kelaidis

Photo by Panayoti Kelaidis

Used with permission, all rights reserved

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Platycodon grandiflorus

Also Known As

  • Balloon Flower
  • Chinese Bellflower

Plant type

perennial

size

  • H: 2'-3'
  • W: 3'

planting zones

  • 4a-9b

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Platycodon grandiflorus plant details

Platycodon grandiflorus is a broadleaf deciduous perennial with green foliage. In summer blue flowers emerge. Features glossy texture. Grows well with sun - mostly sun and even moisture - regular water. Does well in average, rich and well-drained soil.

CHARACTERISTICS OF Platycodon grandiflorus

Plant type: perennial
Plant family: campanulaceae
Foliage: deciduous green
Mature size: 3 FT wide, 2 FT - 3 FT - tall
Flowers: blue blooms in summer
Uses: cottage garden, cutting garden, easy-to-grow, medicinal, self-sowing

GROWING CONDITIONS for Platycodon grandiflorus

USDA Zones: 4a - 9b
Sun exposure: sun - mostly sun
Watering frequency: even moisture - regular
Soil needs: average, rich and well-drained

Nursery contributed plant descriptions

Inflated buds of pale purple-blue open into star-like pointed flowers on 18 inch stems on 12 inch wide plants. Its golden-yellow fall leaf color is of merit. Minimum temperature: -30°F
The flower buds are hollow balloons which inflate and burst open into blue star-shaped flowers.
Yay! This is the original 3’ tall species of “Balloon Flower” that’s so hard to find in these days of wanton dwarfing of our beloved cottage plants. Easy & reliably perennial, you can count on a lovely bright blue floral display from mid-Summer to October (especially with dead-heading). And it blooms like crazy - just when we are missing our blues! Bright glossy-green foliage on upright stems are topped by large 2-3” upward facing, flaring, vibrant, blue starry flowers that open from buds inflated like origami balloons. Quite awesome & the kids will love pinching them to make the mature buds “pop” open. Makes a good cut flower, especially if you burn the stem ends. Long used in Chinese medicine for coughs, colds & much more. Cut to ground in Winter. Rich, well drained soil for maximum beauty. Annual side-dress of compost in Spring. Deciduous but returns reliably each new season. Self sows.

By: Annie's Annuals & Perennials

Gardening facts about Platycodon grandiflorus plant

How to Grow Platycodon grandiflorus

  • Sun Exposure

    • sun - mostly sun
  • Water Needs

    • even moisture - regular
  • Soil Needs

    • average
    • well-drained
    • rich

Features

  • Foliage Color

    • green
  • Flower Color

    • blue
  • Flower Season

    • summer
  • Foliage Season

    • deciduous
  • Texture

    • glossy

See other plant types of Platycodon for your garden

aka Platycodon grandiflorus 'Mareisii', Dwarf Balloon Flower

Plant Type

Perennial

Zones

4a-9b

Size

Height: 12"-30"

Width: 15"-18"

  • sun - bright shade
  • even moisture - regular
Photo of Platycodon grandiflorus 'Mariesii' flower by Secret Garden Growers
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aka Balloon Flower, Dwarf Blue Balloon Flower

Plant Type

Perennial

Zones

3a-8b

Size

Height: 6"

Width: 12"

  • sun - mostly shade
  • even moisture - regular
Photo of Platycodon grandiflorus [Dwarf Form] flower by Far Reaches Farm
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aka Platycodon grandiflora 'Sentimental Blue', Balloon Flower, Chinese Bellflower

Plant Type

Perennial

Zones

3a-8b

Size

Height: 6"-12"

Width: 12"-18"

  • sun - mostly shade
  • even moisture - regular
Photo of Platycodon grandiflorus 'Sentimental Blue' flower by Karl Gercens III
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aka Platycodon grandiflora 'Sissy Pink', Sissy Pink Balloon Flower

Plant Type

Perennial

Zones

4a-9b

Size

Height: 12"-18"

Width: 24"

  • sun - bright shade
  • even moisture - regular
Photo of Platycodon grandiflorus 'Sissy Pink' flower by Secret Garden Growers
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aka Platycodon 'Astra Double Blue', Platycodon grandiflorus 'Astra Double Blue', Astra Double Blue Balloon Flower, Astra Double Blue Chinese Bellflower

Plant Type

Perennial

Zones

3a-8b

Size

Height: 8"-10"

Width: 6"-8"

  • sun - mostly shade
  • even moisture
Photo of Platycodon grandiflorus 'Astra Blue Double' flower by Avant Gardens
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+15 more Platycodon
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