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Platycodon grandiflorus 'Komachi'

 
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Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Platycodon (plat-ee-KO-don) (Info)
Species: grandiflorus (gran-dih-FLOR-us) (Info)
Cultivar: Komachi

Synonym:Campanula glauca
Synonym:Platycodon glaucus
Synonym:Campanula grandiflora

One vendor has this plant for sale.

13 members have or want this plant for trade.

Category:
Perennials

Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing:
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

Hardiness:
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
N/A

Bloom Color:
Pale Pink
Pink
Blue-Violet
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Herbaceous

Other details:
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Non-patented

Propagation Methods:
By dividing the rootball
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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By rox_male
Thumbnail #1 of Platycodon grandiflorus by rox_male

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Thumbnail #2 of Platycodon grandiflorus by enya_34

By RebeccaLynn
Thumbnail #3 of Platycodon grandiflorus by RebeccaLynn

Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorComment
Neutral BlakeInCanada On Jul 15, 2011, BlakeInCanada from Kitchener
Canada (Zone 5a) wrote:

I'd like to see a source saying that the seeds are sterile.

It should be noted somewhere here that the Komachi Balloon Flower does not bloom. The buds puff up and eventually shrivel up all at once. To my knowledge, this is the only type of balloon flower that does this, so if you see pictures of platycodon with no opened blooms, it is probably Komachi.

Also of note, it is taller than the average platycodon.

Positive plumsugar On Aug 13, 2009, plumsugar from Newport News, VA (Zone 7b) wrote:

Propagates politely into slightly larger clumps each year.
Prune back very hard after the first spring growth to encourage more blooms and prevent the plant from being leggy.
Offers an abundance of seeds in fall but they are sterile.

Regional...

This plant has been said to grow in the following regions:

Arlington, Massachusetts
Grand Haven, Michigan
Laurel, Montana
North Plainfield, New Jersey
Bayshore, North Carolina
Athens, Ohio
Knoxville, Tennessee
Newport News, Virginia
Shorewood Hills, Wisconsin



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