Platycodon grandiflorus
Balloon flower, Chinese bellflower, Japanese balloon flower
Also known as Platycodon grandiflora
- Height × spread
- 0.46m × 0.46m
- Position
- Full sun
- Hardiness
- Cold to -15C (RHS H5)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This very pretty plant has distinctive flowers that look overlarge for the plant. Their petals make a spiky, conical cup, white at its centre. There are blue and white flowered (Platycodon grandiflorus f. albus) varieties. The plant itself makes an upright foliage clump, dainty in aspect. The base foliage is rich-green and the flowering stalk has ruddy tints.
- Flower colour
- Blue, White
- Foliage colour
- Green
- Stem colour
- Red
- Variegated
- No
- Scent
- No
- Shape
- Cube
- Height
- 0.46m
- Spread
- 0.46m
- Season of interest
- Summer
- Flowers in
- Summer
- Evergreen
- Deciduous
- Garden style
- Rock garden
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Loam (normal)
- Soil pH
- All types
- Drainage
- Moisture retentive soil, Well drained soil
- Hardiness
- Cold to -15C (RHS H5)
- Borders & containers
- Borders and containers
- Hazards
- No
- Pet safe
- Yes – listed in our pet-safe plants
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Outdoors
Water to keep the soil moist
For best results, this plant needs soil that is always moist. Water deeply and regularly as soon as soil appears dry. Even for established plants in the ground, a dry week can cause problems with some soils. Check plants in pots more often, especially in hot weather. Or install an automatic irrigation system which will do the hard work for you, even when you are away on holiday.
Without regular watering some plants never fully regain their beauty.
Summer
Summer · Planting
Remove offsets to create new plants
Offsets are small plants or shoots that develop around the parent plant. They should have developed a root system of their own before they are detached. They can be planted directly, or grown in pots if so small they could be 'lost' in the garden.
Offsets may be used to replace an aged parent plant, to extend or establish a colony, or can be given away or sold.
Summer-Autumn · Planting
Support young plants
Provide support for young plants, and tie in any growth to the support to keep it tidy.
Planting & general
Compost · Planting
Multi-purpose compost
Use a good quality peat-free multi-purpose compost when growing in pots and containers.