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Balloon Flower

Platycodon grandiflorus (plat-ee-KOH-don gran-dih-FLOR-us)

Family: Campanulaceae Non-native Herbaceous (1-3 ft)

Balloon flower gets its common name from the unopened flower buds which resemble hot air balloons. Children love to grow this plant for the balloon-like buds which pop when squeezed. The name "Platycodon" means "flat bell", which aptly describes the opened flowers. It grows best in full sun to partial shade and well-drained, slightly acidic soil. An easy plant to grow from seed. Division and transplanting are difficult due to the fragile fleshy root system; however, if needed, division should be done in spring. Deadheading will prolong the bloom season.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 44 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 ft) Optimal soil pH Acid (<6.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Perennial
Life cycle
Perennial
USDA zones
3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Loam (Silt)
Soil pH
Acid (<6.0)
Soil drainage
Good Drainage
Available space
12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 1 ft. 0 in. - 2 ft. 0 in. | Width: 1 ft. 0 in. - 1 ft. 6 in.
Maintenance
Low
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Clumping
Foliage
Deciduous
Leaf color
Blue; Green
Leaf type
Simple
Leaf arrangement
Alternate; Whorled
Leaf shape
Lanceolate; Ovate
Leaf margin
Doubly Serrate
Leaf size
1-3 inches long
Hairs present
No
Leaf detail
Toothed, blue-green leaves.
Flower color
Blue; White
Flower value
Good Cut; Showy
Flower shape
Bell
Flower size
1-3 inches
Flower detail
Outward and upward-facing, bell-shaped with five pointed lobes. Blooms in late spring to summer.
Bloom time
Spring; Summer
Wildlife & Ecology
Native status
Non-native
Origin
China, Korea, Japan, Russia
Landscape Use
Landscape location
Container; Patio; Slope/Bank; Walkways
Landscape theme
Cottage Garden; Rock Garden
Design feature
Accent; Border; Small groups
Garden tags
#showy flowers #deer resistant #spring interest #summer flowers #HS302 #full sun tolerant #partial shade tolerant #white flowers #perennial
Problems & Resistance
Propagation
Division; Seed

Planted at Hunnicutt

Nobody’s planted this one yet.